Keratin: what it does, by goal, and the dose that worked
What the 7 human studies of keratin we graded show for each goal, the dose that worked, and the products that hold it. This page is educational, not medical advice.
What it does, by goalMembersThe top 3 of 3 goals
2 of these 7 human studies gave keratin by injection, not by mouth.
| Goal | What the studies show | Studies | Dose that worked |
|---|---|---|---|
| Improved in studies 5 studies, 1 showed an improvement, 1 pooled analysis, 2 by drip, injection or inhaler | 5 | 500 mg | |
| Improved in studies 1 study, it showed an improvement | 1 | 500 mg | |
| Improved in studies 1 study, it showed an improvement | 1 | 300 mg |
Members see which goal each result is for, and the products for it. Start My 7-Day Free Trial →
Products – highest ranked firstMembersThe top 1 of 1
Dose and safetyThe dose that worked and the upper limit
The studies taken by mouth that showed an improvement gave 300 to 500 mg a day.
Biohacker panelMembersWhat our 10 biohackers say about keratin
Members see what each biohacker said. Start My 7-Day Free Trial →
Questions people askMembersAnswered from the figures on this page
What is keratin good for?
Answer for members.
How much keratin a day?
Answer for members.
Can I take keratin with my meds?
Answer for members.
Members see the answers, checked against their own meds and goals. Start My 7-Day Free Trial →
Educational, not medical advice. Figures come from the human studies on PubMed we have graded; a study counts for a form when it names the form it used. Updated as new studies arrive. How we grade →