Dr. Barbara Sturm
vs ISDIN
Two formulas, with different prices and ingredient blends.
| What to compare | Dr. Barbara Sturm Hyaluronic Serum | ISDIN Hyaluronic Concentrate |
|---|---|---|
| US reference price | $325 / 30 mL · $10.83/mL | $115 / 30 mL · $3.83/mL |
| HA forms | Sodium hyaluronate; brand describes multiple molecular sizes | Low- and medium-molecular-weight HA, according to brand |
| Disclosed concentrations | Not disclosed | Not disclosed |
| Other ingredients to consider | Butylene glycol, fermented purslane extract | BioMarine extract, peptides, lentil extract |
| Format | Serum; dropper | Water-gel; pump; satin finish |
| Evidence status | Ingredient-level HA evidence; exact-formula controlled evidence not established here. | Brand user-perception claims plus ingredient-level HA evidence. |
The practical difference
Dr. Barbara Sturm: A short published ingredient list makes this an option for readers who prefer a less complex formula.
ISDIN: The water-gel format and pump may appeal if you want a lightweight step under moisturiser.
What the comparison cannot tell you
Dr. Barbara Sturm: The luxury price does not establish better hydration. We did not identify a controlled trial of the exact current formula in this review.
ISDIN: The brand’s reported user-perception results are data on file, not a published head-to-head trial. Molecular weights in kDa are not supplied on the checked page.
These published details do not establish a clinical winner. No head-to-head study of this pair was identified in this review. Prices were checked 2 November 2026; confirm current local prices.
Read the ingredient evidence