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Ingredient directory

Saccharina Japonica Extract

Saccharina Japonica Extract, sourced from a specific brown seaweed, is a multi-faceted active ingredient recognized for its extensive contributions to skin health. It provides deep hydration, effectively calms irritation, and offers robust protection against various environmental stressors. This extract is highly compatible with all skin types, making it a versatile addition to precision skincare formulations.

Directory entry · Individual source review pending

This profile is awaiting an individual source review. Treat its ratings, dose estimates and compatibility labels as provisional; they are not medical advice or proof of a finished product’s effects.

Skin Protecting Hydrating (Humectant) Soothing (Anti-inflammatory) Antioxidant Decongestant Lipid-reducing Anti-pollution Astringent Skin Brightening (Tyrosinase inhibition) Antibacterial Cell Renewal Boosting

Science

This extract acts as a powerful humectant, utilizing its naturally occurring alginates and hydrocolloids to draw and lock moisture into the skin, simultaneously forming a protective, hydrating film. It exhibits significant anti-inflammatory properties by inhibiting NF-κB activation and supplying essential minerals like magnesium and zinc, which are crucial for reducing redness. Rich in fucoidan polyphenols and fucoxanthin, it functions as a potent antioxidant, neutralizing free radicals and shielding skin cells from oxidative stress and UV-induced damage. Furthermore, it possesses antibacterial qualities, acts as an astringent to minimize the appearance of pores, and contains laminarin, which offers decongestant and lipid-reducing benefits. Its phenolic compounds also provide anti-pollution advantages by trapping heavy metal ions, while actively boosting cellular renewal.


Research

Medium confidence
Effective range N/A
Optimal

10%

Key findings

  1. 01 A clinical study, utilizing a 10% concentration of Saccharina Japonica Extract, demonstrated a significant improvement in skin hydration by 14.44% and an approximate 20% reduction in transepidermal water loss (TEWL) over an eight-hour observation period.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Stability

A polysaccharide component of the extract has shown compatibility with cosmetic creams, enhancing their cohesion and freshness. However, its phlorotannins are susceptible to oxidation when exposed to external factors, indicating that formulations may benefit from co-formulated antioxidants to preserve the extract's stability and efficacy.


Safety

CIR Status
Not reviewed
Sensitization risk Low

EWG Skin Deep rates Saccharina Japonica Extract as 'LOW' for concerns including cancer, allergies & immunotoxicity, developmental & reproductive toxicity, and usage restrictions. Patch testing on human skin has indicated its safety for topical use at moderate concentrations. Information regarding potential high iodine content and thyroid effects pertains specifically to ingestion, not topical application.


Your Skin

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

Our Assessment

Valuable

Saccharina Japonica Extract is a valuable, multifaceted ingredient offering significant hydration, soothing, antioxidant, and protective benefits suitable for all skin types, with demonstrated clinical efficacy at moderate concentrations.


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References

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