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CurlsBot Protein Checker

What this checker does

Paste a product's ingredient list and we'll flag anything in our database classified as a protein or amino acid. This is informational only: knowing a product contains protein is not a reason to avoid it.

There are thousands of different protein ingredients in hair products, with wildly different sizes, charges, and behaviors. Avoiding all of them because of "protein overload" is like swearing off all vegetables because you're allergic to one. Stiff, brittle hair after protein-heavy products is almost always buildup or under-conditioning. For the full science, read The Mystery of Protein Overload.

Try it out

Enter ingredients (comma-separated)

Disclaimer: We're here to have fun and learn about haircare ingredients! 🧪 While our tool can provide some basic insights, it's not a substitute for professional advice. Always consult with a hair care expert for personalized recommendations, especially if you have specific hair concerns or allergies. This web site is not endorsed by, directly affiliated with, maintained, authorized, or sponsored by The Curly Girl Method by Lorraine Massey™️ or her Curly Girl Handbook. Some links on Curlsbot are Affiliate links. Shopping through these links supports the further development of Curlsbot.