Hydrolyzed Dna
INCI: HYDROLYZED DNA
Reviewed by Rosie · Last updated 2 Jun 2026
A conditioning agent derived from broken-down DNA strands for skin and hair
Best For Skin Types
All, Dry, Combination
Addresses
Usage Frequency
Daily
What Is Hydrolyzed Dna?
Hydrolyzed DNA is a processed form of deoxyribonucleic acid—the molecule that carries genetic information in cells. Through hydrolysis, the long DNA chains are broken down into smaller fragments, making them suitable for use in cosmetic formulations. In skincare and haircare products, it functions as a conditioning agent.
The ingredient is used in a small proportion of skincare products (roughly 0.1%), typically included for its moisturising and film-forming properties on the skin's surface and hair fibre.
How It Works
When applied topically, hydrolyzed DNA works as an occlusive and humectant agent. Its small molecular fragments can bind water and sit on the skin's surface, helping to reduce transepidermal water loss—the process by which moisture evaporates from the skin.
The ingredient also forms a light film that may help improve the appearance of skin texture and smoothness, though these effects are largely superficial and temporary.
Clinical Evidence & References
Research into hydrolyzed DNA as a skincare ingredient is limited. Most evidence for DNA-derived compounds in skincare focuses on broader categories like hydrolyzed collagen, where some studies suggest potential benefits for skin hydration and elasticity, though many claims lack robust clinical support.
Direct clinical data on hydrolyzed DNA specifically is sparse. Whilst the ingredient is considered safe in cosmetic use, its efficacy in addressing specific skin concerns remains understudied. It is best viewed as a conditioning agent rather than a targeted treatment.
How to Use
Hydrolyzed DNA is typically found in moisturisers, serums, and haircare products at very low concentrations. Apply as directed on product packaging—usually once or twice daily as part of your regular skincare routine. It works well layered under other treatments and can be combined with other moisturising ingredients for enhanced hydration.
Safety & Precautions
Frequently Asked Questions
From the Clinic
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