Not a topical replacement.
RenuYou is an oral supplement that works from the inside. It complements, rather than replaces, topical skincare (sunscreen, moisturisers, retinoids). Both layers contribute different effects.
RenuYou works on three mechanisms with reasonable evidence behind them.
Collagen is a protein. To produce more of it, the body needs amino acid building blocks — particularly glycine, proline, and hydroxyproline. Hydrolysed collagen peptides are broken down to small fragments that survive digestion and are absorbed as amino acids and small di- and tri-peptides, biased toward what collagen tissues specifically need.
The trial evidence shows measurable improvements in skin elasticity, hydration, and joint comfort over 8-12 week courses at 2-10g/day doses. We chose the lower end of the range (2g/day) because the marginal benefit of higher doses is small and the formula is more compatible with daily-capsule use.
Proksch et al., 2014 — Double-blind trial of 2.5g/day collagen peptides in women 35-55 over 8 weeks. Significant improvements in skin elasticity compared to placebo.
Vitamin C is required as a cofactor for stabilising collagen into its functional triple-helix form. Without adequate vitamin C, the body cannot effectively incorporate amino acids into collagen — the building blocks pile up unused. This is why scurvy (severe vitamin C deficiency) historically presented as a collagen-disorder syndrome.
Zinc supports tissue repair and skin barrier function broadly. Both are included at adequacy-supporting doses to ensure the collagen peptides have what they need to actually be incorporated into new tissue.
Hyaluronic acid binds water in tissues — particularly in skin and joints. Oral HA at 80-200mg/day has trial evidence for skin hydration and joint comfort over 8-12 week courses, with the effect mediated through tissue HA accumulation.
The combined formula addresses the full supply chain: building blocks (collagen), cofactors (vitamin C, zinc), keratin support (biotin), and tissue hydration (hyaluronic acid). Each ingredient supports a different layer.
RenuYou is an oral supplement that works from the inside. It complements, rather than replaces, topical skincare (sunscreen, moisturisers, retinoids). Both layers contribute different effects.
Collagen and tissue effects accumulate over 8-12 weeks. If you're taking it for two weeks, that's not the protocol.
Collagen is by definition an animal-derived protein. There's no plant-based equivalent that delivers the same hydroxyproline content.
RenuYou supports the skin and connective tissue's regenerative capacity. It's not a treatment for clinical skin conditions, joint disease, or any specific medical issue. Speak to your doctor about specific concerns.