The science
The serum's mechanisms divide into immediate, medium-term and cosmetic-story tiers. The immediate tier is humectancy and film formation: glycerin and propanediol draw water into the stratum corneum; hyaluronic acid and sodium hyaluronate bind surface water; acacia gum, pullulan, the recombinant polypeptide and the elastin material dry to a flexible film that produces the tightened sensation and a temporary smoothing of fine lines by tension and light scatter. These effects are well documented and reverse with cleansing. The medium-term tier is copper tripeptide-1, GHK-Cu, a naturally occurring tripeptide-copper complex with extensive in-vitro and animal evidence for stimulating collagen, elastin, decorin and glycosaminoglycan synthesis, activating wound repair and modulating metalloproteinases, and a small number of clinical studies at cosmetic concentrations reporting modest improvements in fine lines, roughness, density and elasticity over eight to twelve weeks; the effect size is meaningfully smaller than that of tretinoin and depends on penetration, which is limited for a charged peptide. Its seventh position here is favourable. Pomegranate seed oil supplies punicic acid, a conjugated linolenic acid, and the fruit extract and ferment supply ellagitannins and punicalagins with laboratory data on protecting collagen from oxidative and UV-mediated degradation, which is preventive antioxidant activity rather than firming.
The story tier has no mechanism. sr-Hydrozoan Polypeptide-1 is a recombinant protein produced by fermentation and modelled on a jellyfish collagen-like sequence; like all collagen-type proteins it is far too large to cross the stratum corneum and acts as a film-forming humectant. Elastin, listed by its INCI name in a vegan-certified product and therefore presumably a plant-derived or recombinant elastin-like protein, is likewise a surface conditioner. Bidens pilosa extract has in-vitro data on retinoic acid receptor activation and no clinical evidence at cosmetic dose. Enteromorpha compressa, Engelhardtia chrysolepis, holy basil and milk thistle extracts are trace antioxidant botanicals. The brand's firmness percentages are consumer-perception results released without methods.
Tolerability is good with minor notes. The formula contains a naturally derived parfum, a fragrance-allergy risk for reactive skin; ethylhexyl palmitate, cottonseed and palm oils carry moderate comedogenic ratings; polymethylsilsesquioxane is an inert silicone powder. Copper peptides can be destabilised by low-pH ascorbic acid applied in the same layer. Pregnancy safety is not an issue with this ingredient list.