keraGEN-IV®
keraGEN-IV® is a premium natural keratin from sheep wool, distributed by LSYGENA for hair, nail and skin nutricosmetics. Catalogue dose: 400 mg/day. Listed certifications: Vegetarian Society, non-GMO, Halal, Kosher. Randomised double-blind clinical study (BIO-EC Laboratory, France).

Specifications
| Origin | Natural keratin (sheep wool) |
|---|---|
| Catalogue dose | 400 mg/day (2 × 200 mg) |
| Form | Free-flowing powder |
| Certifications | Vegetarian Society, non-GMO, Halal, Kosher |
| Packaging / MOQ / storage | Technical data sheet and certificate of analysis on request |
keraGEN-IV® or hydrolysed keratin?
Two keratin grades in the LSYGENA catalogue. The table helps formulators choose by dose, clinical evidence and dosage form — before requesting the technical data sheets.
| Criterion | keraGEN-IV® | Hydrolysed keratin |
|---|---|---|
| Origin / profile | Functional bioactive keratin (sheep wool) | Hydrolysed keratin, rich in cysteine |
| Catalogue dose | 400 mg/day | On the grade’s technical data sheet |
| Clinical evidence | −43.1% hair loss / +10.1% elasticity (BIO-EC) | Not listed on this page |
| Capsule / powder | Free-flowing powder → capsules, tablets | Powder, capsules — good solubility |
| Certifications | Vegetarian Society, Halal, Kosher, non-GMO | On TDS / CoA |
keraGEN-IV® clinical figures: randomised double-blind placebo-controlled study, BIO-EC Laboratory (France), reported in LSYGENA news. Hydrolysed keratin is a distinct grade — do not substitute without revalidation.
Benefits
- Strengthens hair-follicle anchoring
- Improves hair structure
- Supports nail growth
- Superior quality: +10% protein, −10% ash
- Optimised bioavailability, no chemical solvents
Applications
What is keraGEN-IV®?
keraGEN-IV® is positioned as a functional bioactive keratin: it works with dietary collagen by stimulating collagen types IV and VII in particular, useful for hair-follicle anchoring and the dermal–epidermal junction.
The low catalogue dose (400 mg/day) and certification profile (Vegetarian Society, Halal, Kosher, non-GMO) suit premium nutricosmetic briefs where capsule volume and clean label matter.
Clinical evidence and differentiation
LSYGENA news reports a randomised double-blind placebo-controlled study (BIO-EC Laboratory, France) with −43.1% hair loss in 60 days, +10.1% skin elasticity and −12.5% TEWL.
Versus a commodity hydrolysed keratin, that clinical dossier and bioactive positioning justify the keraGEN-IV® brief — not a simple keratin-powder swap.
Dosage-form applications
Free-flowing powder suited to capsules and tablets. Stable at high temperature and across a wide pH range per product documentation — still validate on your matrix.
Use cases: single-active hair/nail/skin beauty, collagen + keratin complex, anti-ageing nutricosmetic. For a brief, state dosage form and target dose: we send TDS, CoA and a sample.
Packaging & storage
Frequently asked questions
What dose for keraGEN-IV®?
400 mg/day per the LSYGENA catalogue, typically 2 × 200 mg capsules. Confirm grade and process on the technical data sheet.
keraGEN-IV® or hydrolysed keratin?
keraGEN-IV® brings a low catalogue dose and clinical data published on the site; hydrolysed keratin is a more classic grade rich in sulphur amino acids. The comparison table on this page frames the choice before you read both TDS files.
What clinical evidence?
LSYGENA news cites a randomised double-blind placebo-controlled study (BIO-EC, France): −43.1% hair loss in 60 days, +10.1% skin elasticity, −12.5% TEWL. The full dossier comes with the product documentation.
Capsule or powder?
The commercial form is a free-flowing powder aimed mainly at capsules and tablets. Sticks and other dosage forms are validated on a sample.
Where do I get the technical data sheet?
Via the technical data sheet button on this page or the contact form. The keraGEN-IV® news article gives clinical context.
Related reading
Bioactive functional keratin: −43.1% hair loss in 60 days and +10.1% skin elasticity.
Read the article