Caulerpa Lentillifera Extract is a nutrient-dense marine botanical that enhances skin structural integrity by reinforcing the dermal-epidermal junction. Often referred to as “Green Caviar,” it provides significant humectant properties and stimulates the synthesis of essential basement membrane proteins to improve skin firmness.
- INCI Name:
- Caulerpa Lentillifera Extract
- Chemical/Scientific Name:
- Caulerpa Lentillifera Extract
- Common Aliases:
- Green Caviar, Sea Grape Extract, Umibudo
| Category: | Active Substances |
| Source Origin: | Marine (Chlorophyta Algae) |
| Comedogenic Rating: | 0 |
| Primary Industries: | Cosmetics, Nutraceuticals |
| Solubility: | Water-soluble |
At a Glance: Properties & Effects
| Hydration/Moisture | |
| Anti-Aging/Renewal | |
| Barrier Repair | |
| Irritation Risk |
Primary Benefits:
- Deeply hydrates through a high concentration of polysaccharides and Amino Acids.
- Strengthens the skin’s structural support by boosting Laminin-5 and Collagen IV production.
- Neutralizes free radicals via antioxidant compounds like caulerpin and vitamins.
- Improves skin density and reduces the appearance of fine lines.
Potential Risks:
- Low risk of allergic reaction in individuals with specific seaweed or iodine sensitivities.
Biological Action & Cosmetic Profile
The biological efficacy of this extract stems from its unique “Green Caviar” structure, which allows the algae to absorb high concentrations of minerals and vitamins from seawater. On a cellular level, the extract targets the Dermal-Epidermal Junction (DEJ), the critical interface that ensures nutrient exchange and structural cohesion between skin layers. By stimulating the synthesis of Laminin-5 and Collagen Type IV, it effectively “re-anchors” the epidermis to the dermis, leading to improved skin tonus and elasticity.
Molecular analysis reveals a high content of sulfated polysaccharides, particularly xylans, which function similarly to Hyaluronic Acid by binding water to the skin’s surface. These molecules create a moisture reservoir that prevents trans-epidermal water loss (TEWL). Additionally, the presence of minerals like magnesium, calcium, and potassium helps maintain the skin’s osmotic balance and enzymatic functions, facilitating natural repair processes.
Secondary metabolites within the algae, such as polyphenols, provide a robust defense against oxidative stress. These antioxidants prevent the degradation of the extracellular matrix caused by UV exposure and environmental pollutants. When integrated into topical formulations, the extract acts as both a protective shield and a structural fortifier, making it particularly effective for thinning or dehydrated skin.
Broader Applications & Origins
Native to the Indo-Pacific coastal regions, Caulerpa Lentillifera has long been a staple in Okinawan and Southeast Asian diets, where it is consumed as “long-life seaweed.” Its transition into the cosmetic industry was driven by its rich nutritional profile, which mirrors the needs of human skin cells. Modern extraction methods prioritize preserving the delicate bio-active molecules, ensuring that the polysaccharides and vitamins remain stable for topical delivery.
Routine Integration
Synergies:
- Hyaluronic Acid: Enhances the surface-level hydration provided by the seaweed’s polysaccharides.
- Niacinamide: Works in tandem to reinforce the skin barrier and improve overall texture.
- Glycerin: Provides a synergistic humectant effect for prolonged moisture retention.
- Panthenol: Complements the soothing and reparative properties of the extract.
Conflicts:
- No known significant biochemical conflicts; universally compatible with most active ingredients.
Clinical Consensus & Safety
Dermatological assessments categorize Caulerpa Lentillifera Extract as a safe, non-sensitizing cosmetic ingredient. The European Commission’s CosIng database recognizes it for skin conditioning and moisturizing functions. Clinical studies published in peer-reviewed journals have demonstrated that concentrations as low as 1-3% significantly increase skin firmness and hydration levels over a 28-day period. Because it is a botanical extract, it is generally well-tolerated across all skin types, including sensitive skin.
Is Caulerpa Lentillifera Extract suitable for oily skin?
Yes, because it is a water-soluble extract with a comedogenic rating of 0, it provides essential hydration without adding oiliness or clogging pores. Its mineral content can also help balance the skin’s natural moisture levels.
How does “Green Caviar” differ from traditional caviar in skincare?
Traditional caviar is animal-derived (fish roe) and rich in proteins and lipids. Green Caviar is a 100% vegan, plant-based alternative that focuses on polysaccharides and minerals to provide similar structural support and hydration benefits.
Can this ingredient help with wrinkles?
By boosting the proteins at the dermal-epidermal junction, it improves skin density and “plumps” the skin from within, which can visibly reduce the depth of fine lines and prevent skin sagging over time.

