Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle

CYSTOSEIRA TAMARISCIFOLIA EXTRACT.

Valuable / SKIN CONDITIONING

Cystoseira Tamariscifolia Extract, derived from brown algae, is a precision skincare ingredient renowned for its comprehensive action against hyperpigmentation and signs of aging. It works by inhibiting melanin production and promoting its degradation, while simultaneously delivering robust antioxidant, anti-inflammatory, and moisturizing benefits. This multi-functional extract supports a more uniform, luminous, and resilient complexion.

Skin conditioning Antioxidant Brightening Anti-inflammatory Moisturizing Anti-aging Photoprotective

Science

Cystoseira Tamariscifolia Extract operates by a multi-faceted approach to improve skin complexion. It actively inhibits melanogenesis, reducing melanin production and its transfer to keratinocytes, while also stimulating existing pigment degradation pathways. Rich in phlorotannins, fucoxanthin, and fucosterol, it provides significant antioxidant protection against reactive oxygen species and lipid peroxidation, preventing oxidative damage. Furthermore, it exhibits anti-inflammatory effects, supports cell renewal and circulation, and offers hygroscopic properties for moisturization. Its ability to counteract collagenase and hyaluronidase degrading activities may help mitigate the formation of uneven pigmentation and wrinkles. A specific oil-soluble variant has also been noted to support neuro-immunity and enhance the skin's positive response to sun exposure.


Research

High confidence
Effective range 1–1.5%
Optimal

1.5%

Key findings

  1. 01 Promoted uniform skin color, enhanced brightness, and visibly reduced pigmentary imperfections.
  2. 02 Decreased overall skin pigmentation within one week of use. Self-assessment by volunteers indicated 83% found their skin tone more transparent, 87% found it lighter, and 87% reported increased luminosity.

Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH N/A
0 7 14

Stability

Generally water-soluble, though a specific trade name variant (BLUE ALGA) is an oil-soluble extract. The ingredient is compatible with Cosmos and China standards and is certified organic.


Safety

CIR Status
Safe as used
Max tested
10%
Sensitization risk Moderate

The CIR Expert Panel deemed this ingredient safe for cosmetic use, including in a broader assessment of brown algae derivatives. While sensitization studies up to 10% yielded negative results, individuals with sensitivities to marine ingredients should exercise caution due to potential breakouts.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Moderate
Comedogenicity Moderate

Our Assessment

Valuable

A highly valuable multi-functional ingredient that effectively targets hyperpigmentation, provides significant antioxidant protection, and supports overall skin health and resilience.


Related

Finding similar ingredients…