Aluminum Starch
Octenylsuccinate
Oil-Absorbing Matte Powder
INCI: Aluminum Starch Octenylsuccinate · CAS 9087-61-0 · Absorbent · Anticaking Agent · Texture Enhancer · White Powder
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Aluminum Starch Octenylsuccinate is a modified starch derivative that delivers serious oil control, a soft matte finish, and a silky velvet skin feel. Whether you're formulating powder compacts, oil-control creams, dry shampoos, or sunscreens, it brings professional-grade texture and performance to your finished product.
It works by absorbing excess oil and sebum from the skin surface, reducing shine and keeping skin fresh and matte throughout the day. In emulsions it stabilizes the oil-water system and reduces perceived greasiness from occlusive agents. In powder formulations it enhances adhesion, improves fineness, and extends makeup wear time. A true multi-tasker — oil absorber, texture enhancer, and emulsion stabilizer in one ingredient.
| INCI Name | CAS | Function |
|---|---|---|
| Aluminum Starch Octenylsuccinate | 9087-61-0 | Absorbent, anticaking agent, texture enhancer, emulsion stabilizer, viscosity modifier |
| Property | Value |
|---|---|
| Appearance | White powder |
| CAS number | 9087-61-0 |
| pH (20% solution) | 4.5–7.0 |
| Solubility | Miscible in water and oils |
| Preservation | Preservative-free |
| Animal testing | Not animal tested |
| Vegan | Does not contain animal-derived components |
| Storage | Keep in a dry place · 40–77°F (5–25°C) · container tightly closed |
| Shelf life | 2 years from date of manufacture |
| Application | Usage Rate |
|---|---|
| Emulsions — creams, lotions, oil-control products | 1–10% |
| Ointments and anhydrous products | Up to 30% |
| Dry powder applications — compacts, loose powders, blushes | 5–10% |
| Dry shampoo and hair powder | 5–15% |
| Sunscreen products | 1–10% |
| Deodorants and antiperspirants | 5–20% |
| Certificate of Analysis | Download COA → |
| Spec Sheet | Download Spec Sheet → |
- Miscible in both water and oils — versatile across aqueous and anhydrous systems
- In emulsions, helps stabilize the oil-water system and reduces perceived greasiness from occlusive agents
- In powder compacts and loose powders, enhances adhesion and extends makeup wear time
- In dry shampoos and hair powders, absorbs scalp oil and keeps hair voluminous and dry
- In sunscreen formulations, enhances water resistance and improves dispersion of UV filters
- Store in a dry place — moisture can cause clumping; keep container tightly closed between uses
- Intended use: Our products are provided for the exclusive purpose of creating external cosmetic and personal care formulations. They are not intended for internal use.
- Creator's liability: INCI VAULT is a supplier of ingredients and is not responsible for the final products you create. The responsibility for ensuring product safety, stability, and regulatory compliance rests entirely with you. This includes conducting thorough testing of all formulas.
- Professional guidance: If you do not have an advanced background in cosmetic science, we advise seeking the guidance of a professional formulator or chemist.
- FDA statement: The information and statements contained herein have not been evaluated by the Food and Drug Administration. These products are not designed to diagnose, treat, cure, or prevent any disease.
Need a larger quantity? Reach out — support@inci-vault.com
Aluminum Starch Octenylsuccinate (INCI: Aluminum Starch Octenylsuccinate · CAS 9087-61-0) is a white modified starch powder used as an oil absorber, texture enhancer, and emulsion stabilizer. Miscible in water and oils. Use at 1–10% in emulsions · 5–10% in powder formulations · up to 30% in ointments. Delivers a soft, dry, matte finish and silky velvet skin feel. Vegan · not animal tested · preservative-free · 2 year shelf life.
| What is it used for?An oil absorber, texture enhancer, and emulsion stabilizer used in powder compacts, oil-control creams, dry shampoos, sunscreens, deodorants, and antiperspirants. Delivers a soft, dry, matte finish and silky velvet skin feel without whitening. |
| Is it water or oil soluble?Miscible in both water and oils — versatile across aqueous emulsions, anhydrous formulations, and dry powder systems. |
| How does it work in emulsions?Stabilizes the oil-water system, reduces perceived greasiness from occlusive agents, and improves overall texture and skin feel. Use at 1–10% in emulsion systems. |
| How should it be stored?Dry place · 40–77°F (5–25°C) · tightly closed container. Moisture can cause clumping. Shelf life 2 years from manufacture date. |
Note: Aluminum Starch Octenylsuccinate is a true multi-tasker — it absorbs oil, enhances texture, stabilizes emulsions, and improves the skin feel of finished products across powder, emulsion, and anhydrous systems. Store in a sealed container away from moisture to prevent clumping. Pairs well with INCI VAULT's T-70 Tocopherol in oil-control formulations — the combination delivers mattifying absorption alongside antioxidant protection, extending the shelf life of the finished product while keeping skin shine-free throughout the day.
