Emollient

Hydrolyzed Chlorella Vulgaris Extract

INCI: HYDROLYZED CHLORELLA VULGARIS EXTRACT

Reviewed by Daisy · Last updated 14 Aug 2026

A peptide-rich microalgae extract with antioxidant and conditioning properties

Best For Skin Types

All, Dry, Sensitive, Mature

Addresses

Hydration, Dryness, Sensitivity

Usage Frequency

Daily

What Is Hydrolyzed Chlorella Vulgaris Extract?

Hydrolyzed Chlorella Vulgaris Extract is derived from Chlorella Vulgaris, a single-celled freshwater microalga. The extraction and hydrolysis process breaks down the algae's proteins into smaller peptide chains, making them more bioavailable for skincare applications.

In formulations, this ingredient functions as an emollient and skin conditioner, helping to soften and smooth the skin surface whilst supporting the skin's moisture barrier.

How It Works

The hydrolyzed peptides in this extract are small enough to interact with the skin surface effectively. They work primarily as humectants and emollients—drawing moisture into the skin and creating a protective film to reduce water loss.

Additionally, research suggests the peptide fractions possess antioxidant activity, which may help counteract free radical damage that contributes to skin ageing and sensitivity.

Clinical Evidence & References

Laboratory studies of hydrolyzed Chlorella Vulgaris peptides have shown promising antioxidant activity in several standard assays, with inhibition values ranging from 74% to 82% across different measurement methods. These results suggest the extract has genuine free radical-scavenging potential.

However, most available evidence comes from in vitro studies rather than human skin trials. Whilst the antioxidant data is encouraging, further clinical research on human subjects would help clarify the visible benefits and optimal concentrations for skincare use.

How to Use

This ingredient is typically found in hydrating serums, moisturisers, and conditioning masks. It works well alongside other hydrating ingredients such as glycerin or hyaluronic acid, and poses no known compatibility issues with common actives. Use as directed by the specific product formulation.

Safety & Precautions

Hydrolyzed Chlorella Vulgaris Extract is generally well-tolerated and suitable for most skin types. No significant sensitising potential has been reported, though those with algae sensitivities should patch-test first.

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