PG-Hydrolyzed Wheat Protein

What Is PG-Hydrolyzed Wheat Protein?

PG-modified hydrolyzed wheat (Triticum vulgare) protein. Wheat proteins are rich in glutamine and proline — amino acids that provide excellent film-forming and hair volumizing properties. The PG modification improves water solubility and reduces the gelling tendency. Wheat protein is the most commonly used plant protein in hair care for its volumizing effect.

Key Skin Benefits

• + Hair volumizing — adds body and thickness to fine/limp hair
• + Film-forming — provides flexible hold and style memory
• + Moisture retention — helps maintain hair hydration balance
• + Cuticle smoothing — reduces frizz and flyaway

Pros

• + Excellent volumizing effect for fine hair
• + Good film flexibility — doesn't flake like some synthetic polymers
• + Plant-derived and renewable
• + PG modification prevents the stickiness of plain wheat protein

Cons

• − Wheat/gluten allergy — must be labeled for celiac consumers
• − Less conditioning than animal proteins for damaged hair
• − Can build up on hair with overuse
• − May be GMO depending on source

Specifications

Safety Ratings

Regional Regulatory Limits

Typical Usage % by Product Type

References

1. CIR Safety Assessment. https://www.cir-safety.org/
2. EU CosIng Database. https://ec.europa.eu/growth/tools-databases/cosing/
3. EWG Skin Deep Database. https://www.ewg.org/skindeep/
4. SpecialChem Cosmetic Ingredients. https://cosmetics.specialchem.com/