Beyoung vs Sallve — side by side, no bias.
Our pick
Sérum Antissinais
8.7/10 · Sallve
| Booster Serum | Sérum Antissinais | |
|---|---|---|
| Brand | Beyoung | Sallve |
| Category | serum | serum |
| Editor Rating | 8/10 | 8.7/10 ★ |
| Category | serum | serum |
| Texture | Lightweight watery-gel | Lightweight serum |
| Finish | Firmed, smooth, lightly hydrated | Velvet |
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| Verdict | Beyoung's Booster Serum is the Brazilian anti-aging serum that punches above its price with one standout ingredient: copper tripeptide-1 (GHK-Cu). This peptide has some of the strongest clinical evidence of any anti-aging ingredient — published studies show it stimulates collagen synthesis, reduces fine lines, and improves skin firmness. Most copper peptide serums cost $50-100 (NIOD, The Ordinary). Beyoung delivers it at R$90 (~$18). Hydrolyzed vegetable protein provides additional amino acid support for collagen production. Trehalose — a stress-protecting sugar found in organisms that survive extreme dehydration — helps skin retain moisture under environmental stress. Red clover (Trifolium pratense) extract provides phytoestrogen support for mature skin. The formula is minimal and functional — no vitamin C, no retinol, just copper peptide infrastructure with supporting cast. This is the Brazilian alternative to NIOD's CAIS for a fraction of the price. | Sallve's Sérum Antissinais (Anti-Aging Serum) pairs 0.3% retinol with copper tripeptide-1 (GHK-Cu — a peptide with documented collagen-stimulating + wound-healing data) and niacinamide. Copper peptides + retinol in one budget Brazilian serum is genuinely unusual at €23. Fragrance-free formulation. |
