Ingredient comparison
Crosslinked sodium HA vs Polyglutamic Acid: which one is right for your skin?
Short answer: Crosslinked sodium HA 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 | Crosslinked sodium HA | Polyglutamic Acid |
|---|---|---|
| Potency | Similar | Similar |
| Evidence | strong evidence | emerging evidence |
| Irritation risk | Low | Low |
| Clogs pores | Low | Low |
| In pregnancy | Considered safe | Considered safe |
| On a label | usually effective at 0.1-0.5% | usually effective at 0.1-3% |
So which should you pick?
Choose Crosslinked sodium HA if
- you want the pick with the most research behind it
The honest bottom line: Crosslinked sodium HA 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 →Crosslinked sodium HA vs Polyglutamic Acid, answered
Which is stronger, Crosslinked sodium HA or Polyglutamic Acid?
They are close in strength: Crosslinked sodium HA and Polyglutamic Acid score similarly on efficacy. Choose by skin type rather than power.
Is Crosslinked sodium HA or Polyglutamic Acid better for sensitive skin?
Both carry a similar irritation risk (low). Patch test either one before using it daily.
Can you use Crosslinked sodium HA and Polyglutamic Acid 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 Crosslinked sodium HA and Polyglutamic Acid.