Ceramide AP Powder: Complete Cosmetic Formulation Guide
Ceramide AP Powder is a specialist cosmetic ceramide used by formulators developing barrier-focused creams, lotions, balms, facial oils, eye-area products and advanced lipid emulsions. This complete guide explains what Ceramide AP is, why it is also associated with Ceramide 6-II, how it differs from Ceramide NP and Ceramide EOP, how to dissolve or disperse the powder, how much to use and how to build a stable ceramide concentrate.
Important: Ceramide AP is a concentrated cosmetic raw ingredient, not a finished skincare product. It must be accurately weighed and incorporated into a properly developed cosmetic formulation. Do not apply the powder directly to skin, use it neat, ingest it or add it to a purchased finished product.
Shop JustGlow Ceramide AP Powder for current pack sizes, availability, batch information and technical documents.
In this Ceramide AP formulation guide: identity and chemistry; what AP means; Ceramide AP versus NP and EOP; current batch information; recommended use levels; solubility and phase selection; oil-phase processing; clear ceramide concentrates; creams and emulsions; combining AP with NP, EOP, Phytosphingosine and cholesterol; calculations; stability testing; troubleshooting; FAQs; storage and professional compliance.
Ceramide AP Powder at a glance
| Property | JustGlow information and formulation guidance |
|---|---|
| INCI name | Ceramide AP |
| Common technical reference | Ceramide AP; sometimes described in supplier literature as Ceramide 6-II |
| Ceramide class | Alpha-hydroxy fatty-acid ceramide |
| CAS number | 212070-45-6 |
| Current batch | LYPH260724 |
| Batch purity | 96.8% purity; 95.7% assay, according to the current batch documentation |
| Molecular formula | C36H73NO5 |
| Molecular weight | 599.97 g/mol |
| Physical form | Fine cosmetic-grade powder; confirm the appearance against the batch COA |
| Solubility | Not water-soluble in normal cosmetic processing; generally requires a suitable heated oil-phase or lipid premix |
| Typical final-formula use level | Approximately 0.05–1%; begin lower when developing a new system and follow the current technical specification |
| Concentrated oil-complex use | A pre-dispersed concentrate may contain a higher percentage than the final cosmetic; calculate the amount delivered into the finished product |
| Processing | Pure powder generally needs controlled heat, thorough mixing and cooling trials; a practical screening range is approximately 70–75°C and not above 80°C in the initial JustGlow development method |
| Finished-product pH | Usually suitable for mildly acidic to neutral cosmetic systems; select the final pH for the complete formula, not for Ceramide AP alone |
Batch-document note: the identity and analytical figures above refer to the current Ceramide AP batch record. Always use the COA and SDS supplied for the batch you are actually using. Do not substitute technical data from another ceramide grade or from a pre-dispersed ceramide complex.
What is Ceramide AP?
Ceramide AP is a sphingolipid used in cosmetic formulation to create sophisticated moisturising and barrier-lipid systems. A ceramide contains a sphingoid base linked to a fatty-acid component. The exact structure of that fatty acid affects the molecule's polarity, chain length, phase behaviour, solubility and interaction with other lipids.
The AP classification refers to an alpha-hydroxy fatty-acid ceramide. In many technical and cosmetic references, Ceramide AP is associated with Ceramide 6-II. It is important not to confuse “alpha-hydroxy” in the ceramide's molecular structure with a free alpha-hydroxy acid such as glycolic acid or lactic acid.
Ceramide AP is not an exfoliating AHA. It should not be marketed as a chemical exfoliant simply because its fatty-acid component is described as alpha-hydroxy. Its cosmetic formulation role is as a barrier-lipid ingredient and skin-conditioning material.
What does Ceramide AP do in a cosmetic formula?
- Supports barrier-focused formulation: Ceramide AP is useful in creams, lotions, balms, lipid serums and other moisturising product concepts.
- Contributes to a multi-ceramide profile: AP can be combined with Ceramide NP and Ceramide EOP when the formulator wants more than one ceramide class.
- Supports a skin-conditioning system: it can contribute to a formula designed to leave skin feeling comfortable, smooth and moisturised.
- Helps build a biomimetic lipid concept: AP may be used with other ceramides, Phytosphingosine, cholesterol and fatty-acid materials, subject to compatibility.
- Works at low levels: pure ceramide powders are concentrated ingredients, so accurate weighing and a controlled premix are essential.
These statements describe a formulation role and do not guarantee the performance of a finished product. A product containing Ceramide AP is not automatically a medical treatment, eczema product, dermatitis treatment or wound-healing product. Finished-product claims must be appropriate, truthful and supported by evidence for the complete formula.
Why use Ceramide AP with Ceramide NP and Ceramide EOP?
Different ceramide classes have different molecular structures. Combining them can give a formulator a broader lipid profile than relying on one powder alone.
| Ingredient | Structural description | Formulation relevance |
|---|---|---|
| Ceramide NP | Non-hydroxy fatty-acid ceramide, commonly used as a foundational ceramide. | Useful in moisturising emulsions and balanced ceramide systems; usually needs an oil-phase or lipid-dispersion process. |
| Ceramide AP | Alpha-hydroxy fatty-acid ceramide, also associated with Ceramide 6-II. | Useful as a complementary ceramide class. It is not a free AHA and is not an exfoliating acid. |
| Ceramide EOP | Esterified omega-hydroxy ceramide with an especially long, lipophilic structure. | Often used at a lower level in a multi-lipid system and requires careful crystallisation testing. |
| Phytosphingosine | A sphingoid-base material related to the structure of ceramides. | Can be used as a complementary lipid in a ceramide concentrate or barrier-focused emulsion. |
AP, NP and EOP are not interchangeable. They have different solubility behaviour, processing needs and effects on a lipid phase. A well-designed blend still requires an appropriate carrier system and finished-product stability testing.
Is Ceramide AP water-soluble or oil-soluble?
Pure Ceramide AP powder is not water-soluble in normal cosmetic processing. Do not sprinkle it into water, hydrosols, glycerin or a finished aqueous gel and expect it to dissolve.
For most formulations, Ceramide AP is handled through a heated oil phase, compatible ester or pre-dispersed lipid concentrate. The carrier needs to wet the powder, provide sufficient solvency or dispersion capacity and keep the material uniformly distributed after cooling.
Useful carrier systems to screen include:
- Octyldodecanol: a practical high-boiling oil-phase carrier for ceramide concentrates.
- Pentylene Glycol: a useful co-carrier in selected lipid systems, but do not assume that glycol alone will dissolve a pure ceramide powder.
- Caprylic/Capric Triglyceride (CCT/GTCC): a useful emollient for dilution and sensory adjustment when compatible.
- Jojoba oil: suitable for screening in selected oil-phase ceramide systems.
- Wheat-germ and other vegetable oils: possible carriers in some systems, subject to odour, oxidation and stability assessment.
- C12–15 Alkyl Benzoate: may be worth screening as a lighter oil-phase carrier, but the final system must be tested for clarity and crystallisation.
Do not assume that every oil is compatible. Some systems containing squalane, silicone oils or isononyl isononanoate may become hazy or develop precipitation after Ceramide AP is diluted into them. Test the exact final ratio rather than judging an oil from its behaviour in a separate sample.
Recommended Ceramide AP use level
The current JustGlow product guidance describes Ceramide AP as typically used at approximately 0.05–1% in the finished cosmetic. Start at the lower end when developing a new base or when the formula must remain fluid, smooth or translucent.
| Ceramide AP level in finished product | Development context |
|---|---|
| 0.05–0.10% | Low-level screening in a cream, lotion or multi-ceramide system; useful for assessing dispersion and texture. |
| 0.10–0.30% | A practical starting range for many barrier-lipid prototypes and AP-focused development trials. |
| 0.30–0.50% | A stronger development level; assess graininess, crystals, viscosity, clarity and sensory feel carefully. |
| 0.50–1.00% | Higher-level development. Use only when the carrier, emulsifier system and finished-product testing support it. |
| Above 1.00% | Do not increase automatically. A higher powder level can create solubility, crystallisation, texture and safety-assessment challenges. |
A concentrated oil complex may contain more Ceramide AP than the final product because it is later diluted into a cream or serum. Always calculate the actual final AP percentage. For example, using 10 g of a 3% AP concentrate in a 100 g finished cream delivers 0.30 g Ceramide AP, equal to 0.30% in the final product.
How to calculate Ceramide AP in a finished formula
| Target AP level in finished product | 100 g finished batch | 200 g finished batch |
|---|---|---|
| 0.10% | 0.10 g Ceramide AP | 0.20 g Ceramide AP |
| 0.25% | 0.25 g Ceramide AP | 0.50 g Ceramide AP |
| 0.30% | 0.30 g Ceramide AP | 0.60 g Ceramide AP |
| 0.50% | 0.50 g Ceramide AP | 1.00 g Ceramide AP |
| 1.00% | 1.00 g Ceramide AP | 2.00 g Ceramide AP |
Concentrate calculation: the amount of concentrate needed is calculated as: target AP percentage ÷ concentrate AP percentage × finished batch size. If the target is 0.30% AP in 100 g and the concentrate contains 3% AP, use 10 g concentrate. Reduce the other ingredients by 10 g so the formula still totals 100%.
How to dissolve or disperse Ceramide AP Powder
- Review the batch documentation. Confirm the INCI, batch, purity, assay, storage and any technical instructions before weighing.
- Choose the final format. An oil concentrate, balm or emulsion is generally easier than a clear water serum for a pure ceramide powder.
- Calculate the total AP level. Decide whether the percentage refers to pure Ceramide AP in the finished formula or to a pre-dispersed concentrate.
- Select a compatible carrier. Begin with a high-boiling oil-phase carrier such as octyldodecanol and screen the required co-carrier separately.
- Pre-wet the powder. Add Ceramide AP gradually to part of the carrier while mixing. This helps prevent dry clumps.
- Heat gradually. A practical JustGlow development trial is approximately 70–75°C. Use controlled heating and avoid unnecessary thermal exposure.
- Mix for 20–30 minutes. Observe whether the powder becomes uniformly dispersed or dissolves into a clear or translucent premix. Do not rely on heat alone.
- Do not exceed 80°C in the initial process. A higher temperature can make the batch harder to assess and may affect other oils or heat-sensitive materials.
- Cool slowly with mixing. Continue gentle agitation during cooling so local concentrations do not create crystals.
- Inspect after cooling. Check for haze, particles, sediment, crystals, graininess or separation after the premix reaches room temperature.
- Add to the correct formulation phase. Introduce the premix into the oil phase or emulsifier system at the appropriate stage.
- Run stability testing. A clear hot premix is not proof of a stable finished product. Check the formula at low, room and elevated temperatures.
Development example: Ceramide AP oil concentrate
A pre-dispersed oil concentrate can make a pure Ceramide AP powder easier to use in later creams and lotions. The following is a development framework, not a commercial product formula and not a claim that it reproduces any branded ceramide complex.
| Ingredient | Percentage | Weight for 100 g | Function |
|---|---|---|---|
| Octyldodecanol | 92.90% | 92.90 g | Primary high-boiling oil-phase carrier |
| Pentylene Glycol | 5.00% | 5.00 g | Co-carrier and processing aid; test the level in the complete system |
| Ceramide NP | 1.20% | 1.20 g | Complementary non-hydroxy ceramide |
| Ceramide AP | 0.30% | 0.30 g | Alpha-hydroxy fatty-acid ceramide |
| Ceramide EOP | 0.10% | 0.10 g | Complementary omega-hydroxy ceramide |
| Phytosphingosine | 0.50% | 0.50 g | Complementary sphingoid-base material |
| Total | 100.00% | 100.00 g | Development framework only |
Suggested method: combine octyldodecanol and pentylene glycol. Add Phytosphingosine while mixing, then add Ceramide NP and Ceramide AP gradually. Add Ceramide EOP last or as a separate pre-wetted portion. Warm the premix to approximately 70–75°C and mix for 20–30 minutes. Cool slowly under gentle agitation and inspect at 5–10°C, room temperature and approximately 40°C.
The carrier ratio may need to change. If the concentrate becomes cloudy or develops crystals, test a different carrier balance, lower the total ceramide load or move to a cream format. Do not assume that a clear concentrate at 75°C will remain clear during storage.
Using Ceramide AP in creams and lotions
Ceramide AP is often easiest to formulate in an oil-in-water emulsion. Prepare an oil-phase premix, add it to the emulsion's oil phase or introduce it through a validated cool-down lipid concentrate, depending on the emulsifier system.
- Prepare the AP-containing oil premix separately.
- Heat the water phase and oil phase according to the emulsifier supplier's process.
- Add the ceramide-containing oil phase and emulsify until uniform.
- Continue controlled mixing during cooling.
- Add heat-sensitive actives and preservative at the appropriate temperature for the selected system.
- Measure pH after the product has equilibrated.
- Inspect for graininess, crystals, oiling-out, separation and viscosity drift after 24–48 hours.
Do not add dry Ceramide AP directly into a finished water phase. If the product becomes grainy, compare the ceramide premix before emulsification with a control emulsion without Ceramide AP. This helps distinguish AP crystallisation from wax crystallisation or an emulsifier problem.
Barrier-cream development framework
| Component | Starting approach | What to assess |
|---|---|---|
| Ceramide AP | 0.10–0.30% of the finished formula | Dispersion, texture, crystals and stability |
| Ceramide NP | 0.20–0.50% | Total ceramide load and compatibility with the oil phase |
| Ceramide EOP | 0.05–0.10% | Crystallisation and the effect of the long-chain lipid |
| Phytosphingosine | Use the current supplier guidance | Solubility, colour, odour and finished-formula compatibility |
| Oil phase | Use a suitable blend of CCT/GTCC, jojoba, octyldodecanol or other tested emollients | Clarity, sensory feel, viscosity and separation |
| Emulsifier and structuring system | Use the selected emulsifier supplier's recommended level | Emulsion stability after adding the lipid concentrate |
| Water phase and humectants | Build around the target texture and preservation system | pH, viscosity, microbial quality and consumer use conditions |
Can Ceramide AP be used in a clear oil serum?
It can be explored in a clear or translucent oil serum, but clarity is not guaranteed. Pure ceramide powders can have limited solubility in low-polarity oils and may crystallise as the formula cools or when the premix is diluted.
For a clear-oil development project:
- Start around 0.10–0.30% AP in the finished product.
- Use a defined oil-phase carrier system rather than adding the powder to the finished oil blend.
- Screen octyldodecanol, pentylene glycol, CCT/GTCC and jojoba separately.
- Allow the product to cool fully before judging clarity.
- Inspect at 5–10°C, room temperature and approximately 40°C.
- Check for delayed crystals after one, two and four weeks.
- Compare a clear-oil version with a translucent or emulsion version; do not force a clear product if the ingredient system is not stable.
Ceramide AP and Phytosphingosine
Phytosphingosine is a complementary sphingoid-base ingredient that can be used with Ceramide AP in a broader ceramide lipid system. The combination may be incorporated into an oil premix before being added to an emulsion or anhydrous product.
Because both materials are concentrated lipid ingredients, add them gradually and observe the premix during cooling. Check odour, colour, clarity, crystallisation and the final sensory profile. Do not assume that a Phytosphingosine-containing concentrate will behave exactly like a Ceramide AP-only concentrate.
Ceramide AP, cholesterol and fatty acids
A biomimetic barrier-lipid concept commonly uses a combination of ceramides, cholesterol and fatty-acid materials. Ceramide AP can be one part of this system, but cholesterol and fatty acids are not automatically required in every formula.
When developing a system with cholesterol or a fatty-acid component, assess:
- the melting and processing temperature of the complete oil phase;
- the order in which each lipid is added;
- the possibility of waxy crystals or graininess;
- the effect on emulsion viscosity and lamellar structure;
- the finished product's pH, odour, colour and sensory feel;
- the stability of the formula at low and elevated temperatures.
The presence of several barrier-lipid ingredients does not prove that the finished product reproduces the composition or performance of human stratum corneum. It is a formulation concept that must be tested in the actual product.
Ceramide AP and pH
Ceramide AP is not normally used to adjust pH. Select the final pH for the entire formula, including the preservative, emulsifier, polymer, other active ingredients and intended use area.
A mildly acidic to near-neutral range is often suitable for leave-on moisturising products, but there is no universal Ceramide AP pH that guarantees stability. Measure the finished product after equilibration and monitor pH during stability testing.
Heat and processing temperature
Pure Ceramide AP powder may need controlled heat to wet and disperse effectively in an oil-phase carrier. A practical JustGlow development process is to begin around 70–75°C, mix for approximately 20–30 minutes and avoid exceeding 80°C in the initial trial unless the current technical documentation gives different validated instructions.
Pentylene Glycol or another co-carrier may help the processing system, but glycol alone should not be assumed to dissolve a pure ceramide powder. The carrier must be evaluated at the final concentration and after cooling.
Stability testing for Ceramide AP formulas
| Test | What to observe |
|---|---|
| Immediately after manufacture | Colour, odour, uniformity, visible particles, pH, viscosity and fill appearance |
| After 24–48 hours | Delayed haze, sediment, crystals, graininess, oiling-out and viscosity change |
| 5–10°C storage | Low-temperature crystallisation, precipitation and changes that may reverse on warming |
| Room-temperature storage | Clarity, texture, odour, colour and long-term phase stability |
| Approximately 40°C storage | Heat-related separation, oxidation, viscosity drift and packaging interaction |
| Freeze–thaw cycling | Irreversible separation, crystals and texture damage where relevant to distribution |
| Centrifuge testing | Early evidence of phase separation in emulsion prototypes |
| Packaging compatibility | Interaction with bottle, pump, gasket, liner, coating and adhesive |
For water-containing products, assess microbiological quality and preservative efficacy. Ceramide AP is not a preservative, and an oil-rich formula is not automatically protected from microbial contamination.
Common Ceramide AP formulation problems
The powder will not wet
Add the powder gradually to part of the carrier and mix before adding the remaining oil. Increase contact between the powder and liquid, use controlled heat and confirm that the carrier is suitable. Do not transfer dry particles into the water phase.
The premix is clear when hot but crystallises on cooling
The warm carrier may temporarily hold the AP, but the cooled system does not have enough solvent capacity. Reduce the AP level, increase a compatible carrier, change the carrier ratio or use a non-clear emulsion format.
The cream feels grainy
Compare the AP premix before emulsification with a control emulsion. Graininess may come from AP crystals, wax crystals, an incompatible emulsifier or insufficient mixing. Change one variable at a time.
The oil serum becomes cloudy after dilution
The final oil blend may be less compatible than the original premix. Test the carrier at the exact final ratio and include low-temperature storage before deciding that the formula is stable.
The emulsion becomes thin
The AP carrier may have changed the oil phase, polymer hydration or emulsifier balance. Review the addition point, total oil level, emulsifier percentage and cooling process.
The formula separates
Check the oil-phase premix, emulsifier, phase ratio, pH, electrolytes, temperature and mixing. Prepare a control batch without Ceramide AP to identify whether the ingredient or the base is responsible.
The formula changes colour or odour
Review raw-material age, heat exposure, light, oxygen, contamination, trace metals and packaging. Retain samples and document the change before deciding whether the batch is acceptable.
What Ceramide AP is not
- Ceramide AP is not a free alpha-hydroxy acid and is not an exfoliating AHA.
- Ceramide AP is not a preservative.
- Ceramide AP is not an emulsifier.
- Ceramide AP is not water-soluble in normal cosmetic processing.
- Ceramide AP is not a finished moisturiser, medicine or treatment.
- Ceramide AP does not guarantee eczema relief, dermatitis treatment, wound healing or medical barrier repair.
- Ceramide AP cannot replace a complete formulation, stability programme, safety assessment or regulatory review.
Frequently asked questions about Ceramide AP Powder
What is Ceramide AP Powder used for?
Ceramide AP powder is used as a concentrated cosmetic raw material in barrier-focused creams, lotions, balms, facial oils and advanced emulsion systems. It is normally incorporated through an oil-phase or lipid premix.
What does AP mean in Ceramide AP?
AP refers to an alpha-hydroxy fatty-acid ceramide. Ceramide AP is also associated with Ceramide 6-II in technical references. The term does not mean that the ingredient is a free AHA exfoliant.
Is Ceramide AP the same as Ceramide 6-II?
Ceramide AP is commonly associated with the Ceramide 6-II designation, but formulators should always use the INCI, CAS number and batch documentation for the actual material supplied.
Is Ceramide AP water-soluble?
No. Pure Ceramide AP powder is not water-soluble in normal cosmetic processing. Use a suitable oil-phase carrier or validated lipid concentrate.
What is the recommended Ceramide AP use level?
The current JustGlow product guidance is approximately 0.05–1% in the finished cosmetic. Start around 0.10–0.30% for initial formulation trials and increase only when the carrier, texture and stability support it.
How do I dissolve Ceramide AP?
Pre-wet the powder in a compatible oil-phase carrier, heat gradually to approximately 70–75°C, mix for around 20–30 minutes, cool slowly and check for crystals. Do not exceed 80°C in the initial JustGlow development method unless the current batch documentation says otherwise.
Can I dissolve Ceramide AP in Pentylene Glycol?
Do not assume that Pentylene Glycol alone will dissolve a pure ceramide powder. It may be useful as part of a co-carrier system with an oil-phase carrier such as octyldodecanol, but the exact combination must be tested.
Can Ceramide AP be used in a water-based serum?
Not as a simple direct addition. A water-only serum needs a validated dispersion or specialist delivery system. An emulsion, oil serum or pre-dispersed lipid concentrate is usually easier to control.
Can I use Ceramide AP in a cream?
Yes. Prepare an oil-phase or lipid premix, emulsify with a suitable system and test the finished cream for graininess, crystals, separation, viscosity, pH and microbiological quality.
Can I combine Ceramide AP with Ceramide NP and Ceramide EOP?
Yes. Combining different ceramide classes can create a broader lipid profile, but each ratio and carrier system must be tested. A formula that works in an oil concentrate may not work in a cream or gel-cream.
Can I use Ceramide AP with Phytosphingosine?
Yes. Phytosphingosine can be used as a complementary sphingoid-base ingredient. Add it through the same controlled lipid premix and check the cooled system for crystals, colour, odour and separation.
Can I use Ceramide AP with cholesterol?
Yes, cholesterol may be included in a broader barrier-lipid concept when the complete formula supports it. Assess melting, crystallisation, texture, emulsion stability and the order of addition.
Can Ceramide AP be used with squalane or silicone oils?
It may be possible, but compatibility is not guaranteed. Some ceramide systems become hazy or precipitate when diluted with squalane, silicone oils or certain esters. Test the exact ratio at low, room and elevated temperatures.
Does Ceramide AP need to be heated?
A controlled heated premix is often useful for pure Ceramide AP powder. Start around 70–75°C, mix thoroughly and cool slowly. Avoid uncontrolled high heat.
What pH should a Ceramide AP cream have?
Choose a pH compatible with the complete formula, preservative, emulsifier, polymer and other actives. Ceramide AP itself does not provide one universal finished-product pH.
Is Ceramide AP an exfoliant?
No. Although AP refers to an alpha-hydroxy fatty-acid ceramide, Ceramide AP is not a free glycolic-, lactic- or salicylic-acid exfoliant.
Can I apply Ceramide AP powder directly to the skin?
No. It is a concentrated cosmetic raw ingredient for formulation use only. Do not apply it neat or use it as a finished skincare product.
What is the difference between pure Ceramide AP and a ceramide complex?
Pure Ceramide AP powder contains the named ceramide as the supplied raw material. A ceramide complex may contain several ceramides, Phytosphingosine, cholesterol and a carrier. Always calculate the actual Ceramide AP delivered by the complex rather than treating the total complex percentage as the AP percentage.
Storage and handling
Keep Ceramide AP Powder tightly sealed, dry and protected from light, heat and moisture. Follow the storage condition and shelf-life information stated on the current batch documentation. Allow the container to reach room temperature before opening if condensation could form. Minimise repeated exposure to humid air and return the container to the recommended storage condition after weighing.
Read the current Safety Data Sheet before handling. Use accurate weighing, clean equipment and suitable protective measures for fine powders. Avoid inhalation and prevent contamination of the remaining raw material.
Professional formulation and UK compliance note
JustGlow Ceramide AP Powder is supplied as a cosmetic raw ingredient for professional formulation use only. The formulator or finished-product manufacturer is responsible for determining the appropriate use level, confirming raw-material identity, testing the formula, validating preservation, assessing packaging compatibility, substantiating cosmetic claims and meeting the requirements of the intended market.
For a finished cosmetic placed on the Great Britain market, the responsible business must maintain the required product information, obtain an appropriate Cosmetic Product Safety Report, follow good manufacturing practice, ensure compliant labelling and complete the required notification before placing the product on the market. This guide is formulation education and does not replace professional regulatory or safety assessment.
Cosmetic ingredient for formulation use only. Do not apply undiluted.
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