Isopropyl Myristate
eye-so-PRO-pil MEER-is-tate
What Is Isopropyl Myristate?
A synthetic ester used as an emollient and penetration enhancer in hair products. It has a dry, non-greasy feel and helps other ingredients absorb into the hair shaft.
Source: Synthetic ester (isopropyl alcohol + myristic acid)
Origin: Synthetic
Also known as: IPM, Myristic Acid Isopropyl Ester
What Does Isopropyl Myristate Do to Your Hair?
Acts as a lightweight emollient that reduces the greasy feel of heavier oils. Enhances the penetration of other active ingredients into the hair shaft. Provides a smooth, silky feel to styling products and treatments.
Best For
All hair types, fine hair, oily hair needing conditioning
Not Recommended For
Acne-prone scalp (comedogenic on skin)
Concentration Matters
1-10% in products
Hair Type Compatibility
Method Compatibility
Safety & Regulation
Safe for hair use but highly comedogenic on skin, which is a concern for the scalp. Can clog pores and potentially exacerbate scalp acne. Best used in rinse-off products rather than leave-on scalp products.
FDA Status: Generally Recognized As Safe
FDA permits use in cosmetics without restrictions.
EWG Score: 3/10
HairAide Verdict
A useful lightweight emollient for hair products but be cautious about scalp application due to its comedogenic nature. Best in rinse-off products or products applied to hair lengths only.
Products That Contain Isopropyl Myristate
Styling products, hair treatments, rinse-off conditioners
Alternatives to Isopropyl Myristate
If you want to avoid Isopropyl Myristate, look for products with these ingredients instead:
C12-15 Alkyl Benzoate, Isopropyl Palmitate, lightweight silicones
Frequently Asked Questions
Yes, Isopropyl Myristate has a safety rating of 7/10 and is generally considered safe for use in hair products. Safe for hair use but highly comedogenic on skin, which is a concern for the scalp. Can clog pores and potentially exacerbate scalp acne. Best used in rinse-off products rather than leave-on scalp products.
Isopropyl Myristate is not CG-method approved. Curly hair types may want to avoid this ingredient or use products containing it sparingly.
No, Isopropyl Myristate is not approved for the Curly Girl method.
Some alternatives to Isopropyl Myristate include: C12-15 Alkyl Benzoate, Isopropyl Palmitate, lightweight silicones
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