What to look at
Read the ingredient lists of the products you use on every wash. Protein shows up as names like hydrolyzed wheat protein, hydrolyzed keratin, silk amino acids or collagen. If several of your everyday products list protein, and the stiffness built up over a few weeks, the pattern fits.
Pull one clean, wet strand gently. A strand that stretches and springs back is fine. One that snaps with almost no stretch fits what people describe as too much protein; one that stretches a long way and stays limp is the opposite, often called moisture overload. It’s a rough home check, not proof: damaged hair can snap whatever you use.
Change one thing on your next wash
For the next few washes:
- Pause the products whose labels list protein, starting with the ones you use every wash.
- Use a protein-free conditioner, and a protein-free mask on one wash day.
- Clarify once if your hair also feels coated, then condition well.
- Bring protein products back one at a time, and less often, once hair feels soft again.
When this is not the answer
Stiff hair is not always protein. Hard water, gel used heavily, build-up and heat damage can feel similar. Hair that has been bleached or chemically straightened can feel stiff and break no matter what you use; there, gentler handling and fewer chemical services matter more than any product.
Products that do this job
Our ingredient checker shows which named proteins appear on a label you paste, and every comparison table lists the named proteins in each product.
Updated · The sources for this guide are on our Sources page. Report a changed detail.