Retinyl palmitate: what the studies show, and the products
30 of the human studies we graded used retinyl palmitate, and 8 showed an improvement. Its products are graded on the studies of every form of vitamin a. This page is educational, not medical advice.
What it does, by goalMembersThe top 5 of 13 goals
1 of these 28 human studies gave retinyl palmitate by injection, not by mouth.
| Goal | What the studies show | Studies | Dose that worked |
|---|---|---|---|
| Improved in studies 7 studies, 2 showed an improvement, 1 found none | 7 | 15,000 IU | |
| Improved in studies 3 studies, 2 showed an improvement | 3 | 25,000 IU | |
| Improved in studies 7 studies, 1 showed an improvement | 7 | – | |
| Improved in studies 1 study, it showed an improvement | 1 | – | |
| Improved in studies 1 study, it showed an improvement | 1 | 25,000 IU | |
| Too few studies 6 studies, 2 showed an improvement, 1 found none | 6 | – | |
| Too few studies 6 studies, 1 showed an improvement, 1 found none | 6 | – | |
| Too few studies 2 studies, 1 showed an improvement, 1 found none, 1 by drip, injection or inhaler | 2 | – | |
| Too few studies 6 studies, no clear result yet | 6 | – | |
| Too few studies 2 studies, no clear result yet | 2 | – | |
| Too few studies 1 study, it found no effect | 1 | – | |
| No effect in studies 3 studies, 2 found none | 3 | – | |
| No effect in studies 2 studies, both found no effect | 2 | – |
Members see which goal each result is for, and the products for it. Start My 7-Day Free Trial →
Products – highest ranked firstMembersThe top 3 of 6
Dose and safetyThe dose that worked and the upper limit
The studies of retinyl palmitate taken by mouth that showed an improvement gave 15,000 to 200,000 IU a day.
The upper limit for adults is 3,000 mcg of vitamin a a day; above it, members see a note and are told they can take less.
Biohacker panelMembersWhat our 10 biohackers say about retinyl palmitate
Members see which forms the panel backs, and what each biohacker said. Start My 7-Day Free Trial →
Questions people askMembersAnswered from the figures on this page
What is retinyl palmitate good for?
Answer for members.
How much retinyl palmitate a day?
Answer for members.
Can I take retinyl palmitate 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 →