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LAMINARIA ANGUSTATA EXTRACT.

Insufficient Data / SKIN CONDITIONING

Laminaria Angustata Extract, derived from brown seaweed, functions as a powerful humectant, significantly boosting skin hydration by attracting and retaining moisture. It helps to form a protective film on the skin, thereby reinforcing the skin's natural moisturizing factor (NMF) and offering revitalizing benefits.

Summary

skin conditioning humectant antioxidant soothing revitalizing re-mineralizing anti-inflammatory decongestant

Science

Mechanism of Action

This extract primarily acts as a moisturizing agent by delivering a rich complex of mineral salts, trace elements, vitamins, and polysaccharides to the skin. Its highly hygroscopic nature allows it to effectively draw and bind water, functioning as a humectant. Phycocolloids like alginate contribute to forming a protective film on the skin surface, which aids in strengthening the natural moisturizing factor. Beyond direct hydration, general algae extracts are known to revitalize, re-mineralize, stimulate microcirculation, and promote cellular renewal. Certain *Laminaria* species also exhibit antioxidant, anti-inflammatory, decongestant, and lipid-reducing properties.

Research

Clinical Evidence

Medium confidence
Effective range 0–10%
Optimal

10%

Transparency

Dusting Analysis

Not commonly dusted

No data within the provided research suggests this ingredient is commonly used at ineffective concentrations or as a 'dusting' ingredient.

The Formula

Formulation

Solubility
Water
Optimal pH 3.5 – 7
0 7 14

Stability

Laminaria Angustata Extract demonstrates good stability within a pH range of 3.5 to 7.0. Some commercial formulations target a pH of 3.5-5.5. It does not exhibit strong reactions with acidic or alkaline substances and has shown good compatibility, not adversely affecting the physicochemical characteristics of test cream formulations.

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Low

Laminaria Angustata Extract is a retired INCI name, now recognized as Saccharina Angustata Extract. The Cosmetic Ingredient Review (CIR) Expert Panel concluded in 2019 that there was insufficient data to determine the safety of many brown algae-derived ingredients, including Saccharina Angustata Extract. While related species like *Laminaria Digitata* are generally considered safe with low irritation and comedogenic potential, brown algae extracts may contain impurities such as arsenic, necessitating robust manufacturing practices to monitor and limit these levels. Caution is advised for individuals with iodine sensitivity or thyroid conditions due to the inherent iodine content in some Laminaria extracts. Patch testing is recommended for any new skincare ingredient.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Insufficient Data

Laminaria Angustata Extract demonstrates significant potential as a hydrating, revitalizing, and soothing ingredient suitable for all skin types, but regulatory bodies currently require more specific data for a complete safety assessment.

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