Substantivity Agents

Substantivity agents appear as water-soluble or oil-dispersible conditioning ingredients. Key features include improved longevity of actives, enhanced moisture retention, and resistance to wash-off, making them ideal for long-wear cosmetics, hair masks, and sun care products. 

Popular INCI ingredients in this segment include Polyquaternium-10, Hydrolyzed Proteins, and Cationic Guar Gum. Trends show substantivity agents being incorporated into barrier-focused and wear-resistant formulations. Regulatory considerations revolve around ensuring mildness and optimal skin compatibility.