Bis-Aminopropyl Dimethicone

bis-ah-MEE-no-PRO-pil dye-METH-ih-kone

Conditioning Agent, Film Former 7/10 Safety Not CGControversial Synthetic Vegan

What Is Bis-Aminopropyl Dimethicone?

An amino-functionalized silicone that bonds to the hair's negative charge sites for targeted conditioning. It provides strong conditioning that resists washing out while feeling lighter than standard silicones.

Source: Synthetic amino-functional silicone

Origin: Synthetic

Also known as: Amino Silicone, Bis-Aminopropyl Dimethicone

What Does Bis-Aminopropyl Dimethicone Do to Your Hair?

Bonds electrostatically to damaged, negatively charged sites on the hair shaft, providing targeted conditioning where it is most needed. More substantive than standard dimethicone, meaning it stays on hair through multiple washes.

Best For

Damaged hair, color-treated hair, thick hair, dry hair

Not Recommended For

Fine hair (may weigh down), healthy hair (unnecessary)

Concentration Matters

1-5% in products

Hair Type Compatibility

1A Straight Fine
1B Straight Medium
1C Straight Coarse
2A Wavy Fine
2B Wavy Medium
2C Wavy Coarse
3A Curly Loose
3B Curly Tight
3C Curly Corkscrew
4A Coily S-Shaped
4B Coily Z-Shaped
4C Coily Tight
Color-treated: Safe Heat-damaged: Beneficial

Method Compatibility

Curly Girl (CG) Method: Avoid
CG Avoid

Safety & Regulation

7/10
AvoidCautionSafe

Safe for cosmetic use. Not water-soluble so will build up over time and requires clarifying shampoo for removal. The amino functionality provides more persistent conditioning than standard silicones.

FDA Status: Generally Recognized As Safe

FDA permits use in cosmetics without restrictions.

EWG Score: 3/10

HairAide Verdict

An amino silicone that provides strong, wash-resistant conditioning for damaged hair. More substantive than regular silicones. Best for significantly damaged hair that needs lasting repair between salon visits.

Products That Contain Bis-Aminopropyl Dimethicone

Deep conditioners, bond-repair treatments, damaged hair products, professional treatments

Alternatives to Bis-Aminopropyl Dimethicone

If you want to avoid Bis-Aminopropyl Dimethicone, look for products with these ingredients instead:

Amodimethicone, Trimethylsilylamodimethicone, Dimethicone

Frequently Asked Questions

Is Bis-Aminopropyl Dimethicone safe for hair?

Yes, Bis-Aminopropyl Dimethicone has a safety rating of 7/10 and is generally considered safe for use in hair products. Safe for cosmetic use. Not water-soluble so will build up over time and requires clarifying shampoo for removal. The amino functionality provides more persistent conditioning than standard silicones.

Is Bis-Aminopropyl Dimethicone bad for curly hair?

Bis-Aminopropyl Dimethicone is not CG-method approved. Curly hair types may want to avoid this ingredient or use products containing it sparingly.

Is Bis-Aminopropyl Dimethicone CG-method approved?

No, Bis-Aminopropyl Dimethicone is not approved for the Curly Girl method.

What can I use instead of Bis-Aminopropyl Dimethicone?

Some alternatives to Bis-Aminopropyl Dimethicone include: Amodimethicone, Trimethylsilylamodimethicone, Dimethicone

Get Our Free Ingredient Decoder Cheat Sheet

Take the guesswork out of reading product labels. Our printable cheat sheet helps you decode ingredients while you shop.

Check What's In Your Products

Use our free Hair Product Label Analyzer to check any product's ingredient list instantly.

Analyze My Product →