Science
Mechanism of Action
As a potent humectant, this extract effectively draws and retains moisture within the epidermis, significantly enhancing skin hydration, elasticity, and softness. Its robust antioxidant capacity, primarily from phlorotannins, actively neutralizes free radicals, thereby mitigating oxidative stress that contributes to premature aging, dullness, and discoloration. The extract also provides anti-inflammatory benefits, calming irritated skin and reducing redness, while offering protective effects against UV-induced DNA damage. Furthermore, its rich composition of amino acids, vitamins, and minerals stimulates the production of vital collagen and elastin, promoting skin regeneration, boosting cell renewal, and fostering firmer, smoother skin. It has also been observed to modulate multiple steps in melanin synthesis, contributing to a more even skin tone.
Research
Clinical Evidence
High confidence0.3%
Key findings
- 01 A clinical study demonstrated that 0.3% Fucus vesiculosus extract significantly reduced the melanin index of age spots, increased brightness, and decreased wrinkle appearance. After 60 days, 50% of participants experienced improved skin brightness, 65% observed a reduction in skin spot appearance, and 45% showed an improved appearance of wrinkles.
- 02 At a 1% concentration, Fucus vesiculosus extract exhibited significant anti-aging bioactivity, positioning it as a valuable cosmeceutical ingredient.
- 03 When combined with other natural ingredients like Crithmum maritimum, Ascophyllum nodosum extract was shown to modulate multiple stages in melanin synthesis, distribution, and activation, contributing to a more even skin tone.
- 04 In laboratory settings (intestinal epithelial cells and *C. elegans*), both Ascophyllum nodosum and Fucus vesiculosus extracts demonstrated significant antioxidant capabilities at concentrations ranging from 100-400 µg/g, effectively mitigating oxidative stress.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The extracts have shown to support the survival of *Lactiplantibacillus plantarum* across a wide pH range (2.5–4.5 and 6.5, 8.5). Ascophyllum nodosum extract should be formulated with caution, as it is known to degrade in the presence of oxidants or acids.
Conflicts
- oxidants
- acids
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has deemed Ascophyllum Nodosum Extract and Fucus Vesiculosus Extract safe for use in cosmetics. While seaweeds can potentially accumulate heavy metals like arsenic, this risk can be mitigated by sourcing certified heavy metal-free products (e.g., a 4.7% Ascophyllum Nodosum Extract in water had ≤ 20 ppm heavy metals). Although Ascophyllum Nodosum contains iodine, which could be a concern for individuals with autoimmune thyroid conditions with long-term or high-dose oral intake, clinical trials for topical administration have observed no major adverse effects or negative impacts on thyroid function.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This marine-derived extract offers a comprehensive array of benefits, from significant anti-aging and skin brightening effects to deep hydration and antioxidant protection, making it a valuable addition to diverse skincare formulations for all skin types.
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References
Sources