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DIECKOL.

Valuable CAS 88095-77-6 / ANTIOXIDANT, CHELATING, HAIR CONDITIONING, SKIN CONDITIONING

A sophisticated phlorotannin isolated from marine brown algae, Dieckol is a multi-functional polyphenol engineered for advanced cellular protection. It serves as a high-performance bioactive that bridges the gap between oxidative stress defense and structural skin fortification.

antioxidant skin-brightening soothing anti-aging

Science

Dieckol employs a quaternary action plan: it inhibits Matrix Metalloproteinases (MMP-1, 3, and 9) to halt collagen breakdown, functions as a non-competitive tyrosinase inhibitor to interrupt melanogenesis, neutralizes free radicals to mitigate UV-induced damage, and suppresses the STAT1 pathway to diminish pro-inflammatory cytokine activity.


Research

High confidence
Effective range 12.5 μM–50 μM%
Optimal

1.0%

Key findings

  1. 01 Demonstrated collagenase inhibition of up to 64.9% in UVB-exposed dermal fibroblasts at concentrations of 50 μM.
  2. 02 Achieved tyrosinase inhibition superior to arbutin (IC50 of 20 μM) without inducing cellular toxicity.
  3. 03 In vivo testing of 0.5% concentrations showed significant stimulation of dermal papilla cells and hair-fiber elongation via 5α-reductase modulation.

Transparency

Commonly dusted
Min. effective
0.1%
Red flag below
0.01%

Because Dieckol is often included as part of 'Ecklonia Cava Extract,' many formulations list the extract for marketing claims while providing negligible levels of the isolated Dieckol molecule required for tyrosinase or MMP inhibition.


The Formula

Solubility
Both
Optimal pH 4 – 6
0 7 14

Stability

While thermostable up to 90°C, this polyphenol is sensitive to photo-oxidation and requires UV-protective packaging. It undergoes a color shift and loses efficacy in alkaline environments.

Synergies

  • Ascorbic Acid
  • Niacinamide
  • Broad-spectrum UV filters

Conflicts

  • Ferric ions
  • Strong oxidizing agents
  • Formulations with pH > 7.0

Safety

CIR Status
Safe as used
Max tested
2%
Pregnancy
Safe
Sensitization risk Low

Recognized as safe by the CIR Expert Panel within the brown algae group; clinical oral data supports a high safety profile even at systemic doses up to 1500mg/day.


Your Skin

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

Our Assessment

Valuable

A high-precision marine active that offers rare non-competitive tyrosinase inhibition and potent enzymatic collagen protection.


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