These are the two pillars the entire Larens technology is built on. On the Science page we explained the general mechanism of cold extraction and freeze-drying — here we go deeper: the exact composition, the research, how liposomes work, and the full list of products that contain each complex.
Biopeptide Complex is a complex of bioactive fish collagen peptides patented by WellU — this patent information consistently appears on the product pages of nearly every Larens product that contains it. It's created through a cold extraction process (around 16°C, without aggressive chemistry — the full method is described on the Science page), which breaks large-molecule collagen down into much smaller, more bioavailable fractions.
Research into its composition has shown that among the smaller peptides, the most common are chains of 7 to 29 amino acids. The complex contains a full family of building-block amino acids — including arginine, threonine, alanine, proline, tyrosine, valine, methionine, cysteine, isoleucine, leucine, phenylalanine, lysine, aspartic acid, glutamic acid, serine, glycine and histidine.
The peptides come from several different collagen proteins and related structures: collagen I (chains α1, α2, α3), collagen IV (α1), collagen VI (α3), collagen VII, procollagen VIII (α2), as well as decorin, lumican and histones (H2A, H2B, H4) — proteins involved in repairing and rebuilding skin structures. An independent scientific publication, "Identification of Small Peptides of Acidic Collagen Extracts from Silver Carp Skin and Their Therapeutic Relevance" (Wrocław Medical University, 2016), analysed peptide extracts of this kind, obtained from silver carp skin.
The peptides stimulate fibroblasts — the cells responsible for synthesising the skin's own collagen and elastin.
They activate chaperone HSP proteins (Heat Shock Proteins), which help skin cells regenerate after contact with stress-inducing factors.
The procollagen supplied is synthesised directly into the skin's structural collagen.
The most concentrated carrier of Biopeptide Complex is Biopeptide Serum Spray — a multifunctional peptide serum for the face, body and hair. In it, the complex works synergistically with colloidal silver, Hydromanil™ and biotin, resulting in: increased collagen and elastin production (shallower wrinkles, greater skin elasticity), soothed irritation and eczema symptoms, long-lasting hydration, faster healing of minor wounds, and strengthened, shinier hair.
Liposomal Collagen Complex is a market-unique combination of natural fish collagen, peptides, amino acids, decorin, lumican and histones — enclosed in a liposomal carrier. It's precisely this carrier that sets it apart from the classic Biopeptide Complex, allowing active ingredients to reach much deeper.
Liposomes are microscopic (0.01–10 µm) spherical structures built from a phospholipid shell — identical to the skin's own lipid bilayer. Thanks to this similarity, they're widely used in the pharmaceutical and cosmetics industries for local or systemic delivery of active substances. Under an electron microscope (100–200 nm magnification), their varied structure is clearly visible:
Small Unilamellar Vesicles — the smallest fraction, a single lipid layer.
Large Unilamellar Vesicles — a greater capacity for carrying active ingredients.
Multivesicular Vesicles — a complex, multi-layered structure with the longest release time.
The multi-layered nature of the liposome's lipid walls has key practical significance — they break down gradually, releasing their contents slowly and extending the complex's action over time. In addition, the phospholipids that build the shell bind water and form a biofilm on its surface, which prevents excessive moisture loss — hence the long-lasting hydration effect.
Reaching deeper skin layers triggers two parallel processes: filling and reconstructing already-damaged skin structures using the collagen delivered, and simultaneously initiating the formation of new collagen by skin cells. The effect is felt quickly — an immediate smoothing of wrinkles and a noticeable thickening of skin structure — but the complex also kicks off long-term repair processes, whose results build up with regular use.
It's one of the few Larens technology ingredients that goes beyond facial skincare alone — you'll find it across several different product categories:
A rich cream with 10% urea — the complex strengthens the elasticity of the stratum corneum.
Even in foundation — the complex provides anti-ageing action while you wear your makeup.
Both complexes are based on the same raw material — fish collagen peptides — but they differ in delivery form and range of application:
In practice, the two complexes often work together within a single skincare routine — Biopeptide Complex as an everyday base (e.g. in Biopeptide Serum Spray), Liposomal Collagen Complex as intensive support at specific points in your routine (serum, hand cream, toothpaste, or even foundation).