Humectant

Hydrogenated Starch Hydrolysate

INCI: HYDROGENATED STARCH HYDROLYSATE

Reviewed by Daisy · Last updated 14 Aug 2026

A gentle humectant derived from modified starch that helps skin retain moisture

Best For Skin Types

All, Dry, Combination, Mature

Addresses

Dryness, Hydration

Usage Frequency

Daily

What Is Hydrogenated Starch Hydrolysate?

Hydrogenated Starch Hydrolysate is a humectant ingredient created through the chemical modification of starch. It functions by drawing moisture from the environment and deeper skin layers to the outer surface, helping to improve skin hydration and tactile softness.

This ingredient is used in a modest proportion of skincare formulations (approximately 0.8% of products). It works as part of a formulation's hydration strategy, often alongside other humectants and occlusives to create a balanced moisturising system.

How It Works

As a humectant, Hydrogenated Starch Hydrolysate attracts water molecules and binds them to the skin's outer layers. This mechanism helps reduce transepidermal water loss (moisture evaporation from the skin) and can improve the skin's overall hydration state.

The ingredient works most effectively when used alongside occlusive ingredients (oils or waxes) that seal in the moisture it has helped attract and retain.

Clinical Evidence & References

Research on rice-derived starches and their hydrolysed forms indicates that starch-based ingredients are generally well-tolerated in cosmetic applications. However, specific clinical data directly measuring the efficacy of Hydrogenated Starch Hydrolysate alone is limited in published literature.

The ingredient appears to function reliably as a supportive humectant within formulations, though its performance is most evident when combined with complementary hydrating and occlusive ingredients rather than used in isolation.

How to Use

Hydrogenated Starch Hydrolysate is typically found in leave-on moisturisers, serums, and hydrating treatments rather than rinse-off products. For best results, apply to damp skin and follow with an occlusive moisturiser to seal in the hydration this ingredient has helped establish.

Safety & Precautions

This ingredient has a good safety profile and is considered well-tolerated across skin types. No significant adverse effects have been reported in cosmetic use.

Frequently Asked Questions

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