Dipropylene Glycol

dye-PRO-pil-een GLY-kol

Humectant, Solvent 7/10 Safety CG ApprovedClean Synthetic Vegan

What Is Dipropylene Glycol?

A synthetic solvent and humectant used in hair products for moisture retention and ingredient solubilization. Lighter than glycerin and commonly used in fragranced products.

Source: Synthetic (propylene oxide derivative)

Origin: Synthetic

Also known as: DPG

What Does Dipropylene Glycol Do to Your Hair?

Acts as a solvent for fragrances and other ingredients while providing mild humectant properties. Lighter and less tacky than glycerin. Helps create smooth, elegant product textures.

Best For

All hair types

Not Recommended For

None known

Concentration Matters

1-10% 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

Method Compatibility

Curly Girl (CG) Method: Approved
CG Approved

Safety & Regulation

7/10
AvoidCautionSafe

Safe for cosmetic use. Low irritation potential. Less likely to cause sensitivity than propylene glycol. Well-tolerated across all skin types.

FDA Status: Generally Recognized As Safe

FDA permits use in cosmetics without restrictions.

EWG Score: 2/10

HairAide Verdict

A straightforward solvent and humectant with no notable concerns. Does its job without fanfare. Safe and well-tolerated.

Products That Contain Dipropylene Glycol

Fragranced hair products, conditioners, styling products, serums

Alternatives to Dipropylene Glycol

If you want to avoid Dipropylene Glycol, look for products with these ingredients instead:

Butylene Glycol, Propylene Glycol, Glycerin

Frequently Asked Questions

Is Dipropylene Glycol safe for hair?

Yes, Dipropylene Glycol has a safety rating of 7/10 and is generally considered safe for use in hair products. Safe for cosmetic use. Low irritation potential. Less likely to cause sensitivity than propylene glycol. Well-tolerated across all skin types.

Is Dipropylene Glycol bad for curly hair?

Dipropylene Glycol is CG-method approved and is generally considered safe for curly hair.

Is Dipropylene Glycol CG-method approved?

Yes, Dipropylene Glycol is approved for the Curly Girl method.

What can I use instead of Dipropylene Glycol?

Some alternatives to Dipropylene Glycol include: Butylene Glycol, Propylene Glycol, Glycerin

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