Ingredient comparison
Polyglutamic Acid vs Pro-vitamin B5: which one is right for your skin?
Short answer: Pro-vitamin B5 has the stronger evidence, so it is the more reliable choice for real results. Polyglutamic Acid is promising, but treat it as a nice-to-have rather than the one doing the work.
| Compared | Polyglutamic Acid | Pro-vitamin B5 |
|---|---|---|
| Potency | Similar | Similar |
| Evidence | emerging evidence | strong evidence |
| Irritation risk | Low | Low |
| Clogs pores | Low | Low |
| In pregnancy | Considered safe | Considered safe |
| On a label | usually effective at 0.1-3% | Not usually disclosed |
So which should you pick?
Choose Pro-vitamin B5 if
- your barrier feels stressed and needs the support
- you want the pick with the most research behind it
The honest bottom line: Pro-vitamin B5 has the stronger evidence, so it is the more reliable choice for real results. Polyglutamic Acid is promising, but treat it as a nice-to-have rather than the one doing the work.
Better for your concern
- Fine lines and firmnessPolyglutamic Acid
- Dryness and dehydrationEither
Based on their scores in the knowledge base. "Either" means both hold their own for that goal.
No known clash between these two. If you want both, you can layer them; introduce one at a time.
Check these two in the tool →Or decode a whole product label →Polyglutamic Acid vs Pro-vitamin B5, answered
Which is stronger, Polyglutamic Acid or Pro-vitamin B5?
They are close in strength: Polyglutamic Acid and Pro-vitamin B5 score similarly on efficacy. Choose by skin type rather than power.
Is Polyglutamic Acid or Pro-vitamin B5 better for sensitive skin?
Both carry a similar irritation risk (low). Patch test either one before using it daily.
Can you use Polyglutamic Acid and Pro-vitamin B5 together?
There is no known clash between them. You can layer them if you like, just introduce one at a time.
General guidance, not medical advice. Read the full pages on Polyglutamic Acid and Pro-vitamin B5.