Science
Mechanism of Action
This extract operates through a dual-action pathway: it utilizes marine carotenoids like fucoxanthin and polyphenols to neutralize oxidative stress, while its high mineral and silica content provides structural support to the skin matrix. Additionally, it enhances the Natural Moisturizing Factor (NMF) and forms a protective, non-occlusive film to prevent transepidermal water loss.
Research
Clinical Evidence
Medium confidence1.5%
Key findings
- 01 Clinical evaluations published in the Journal of Applied Phycology (2018) indicate that marine diatom extracts significantly enhance skin barrier integrity and moisture retention.
Transparency
Dusting Analysis
While clinically effective at 1.0% or higher, many commercial formulations utilize this extract at 'label claim' levels (0.1% or lower), which fails to provide the documented barrier-reinforcing and antioxidant benefits.
The Formula
Formulation
Stability
Highly stable in aqueous systems but thermolabile; exposure to temperatures exceeding 40°C during formulation can degrade its delicate antioxidant profile.
Synergies
- Glycerin
- Propanediol
- Hyaluronic Acid
Conflicts
- Strong oxidizing agents
- Extreme pH levels below 4.0 or above 8.0
Safety
Safety Profile
Reviewed and confirmed safe by the CIR in 2019 as part of the Brown Algae assessment; it is non-irritating and suitable for long-term use.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An excellent marine bioactive for modern urban skincare, provided it is formulated at concentrations high enough to deliver its protective and hydrating benefits.
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References
Sources