SkinMedica vs The Ordinary — side by side, no bias.
Our pick
TNS Advanced+ Serum
9/10 · SkinMedica
| TNS Advanced+ Serum | Marine Hyaluronics | |
|---|---|---|
| Brand | SkinMedica | The Ordinary |
| Category | serum | serum |
| Editor Rating | 9/10 ★ | 8/10 |
| Category | serum | serum |
| Texture | Thick peach-pink serum | Watery essence |
| Finish | Silky smoothing | Invisible, slightly slippy |
| Skin Types |
| Targets |
| Pros |
|
|
| Cons |
|
|
| Verdict | The US cosmetic-derm world's post-procedure gold standard. TNS — Tissue Nutrient Solution, a growth-factor complex derived from human fibroblast conditioned media — paired with signal peptides and barrier support. Clinical data on photoaging is published and serious. $295 is genuinely expensive, but the 4–6 week post-Fraxel case is exactly what this product was built for. | Deciem's HA-alternative play — a 23% active concentration of marine-derived hydrators built around three botanical/microbial standouts: algae extract, Pseudoalteromonas ferment extract (a deep-sea bacterium ferment), and Ahnfeltia concinna (Hawaiian red algae). The pitch is that these compounds attract and bind water like hyaluronic acid does, but at lower molecular weight and lighter feel — so combo and oily skin types who find HA tacky get a similar plumping effect without the sticky finish. The ingredient deck also packs a near-NMF amino acid profile (glycine, alanine, serine, valine, proline, etc.) plus PCA and sodium lactate — basically the same humectant cocktail your stratum corneum manufactures, redelivered topically. Pairs naturally with the brand's own Hyaluronic Acid 2% + B5 (use Marine in AM, HA at night) or stands alone for sensitivity-tier skin that finds HA serums too occlusive. The watery vehicle layers under everything; the absence of fragrance and silicones keeps the irritation profile low. |
