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BASIC BLUE 9.

Valuable CAS 61-73-4 / HAIR DYEING

Commonly known as Methylene Blue, this synthetic redox agent is a next-generation mitochondrial antioxidant that re-energizes cellular metabolism. It serves as a potent skin-protective molecule that targets deep-seated signs of aging by optimizing the biological longevity of fibroblasts.

antioxidant anti-aging mitochondrial-activator skin-protectant

Science

It functions as a mitochondrial-targeted antioxidant and electron carrier, facilitating efficient cellular respiration. By neutralizing reactive oxygen species (ROS) and promoting DNA repair, it upregulates the synthesis of Type I collagen and elastin while inhibiting cellular senescence markers.


Research

High confidence
Effective range 0.000003–0.016%
Optimal

0.005%

Key findings

  1. 01 Demonstrated superior efficacy over MitoQ and NAC in accelerating skin fibroblast proliferation and delaying cellular aging in Scientific Reports (2017).
  2. 02 Observed to stimulate double-strand DNA break repair and alleviate mitochondrial abnormalities in progeria-affected skin models via research at the University of Maryland (2017).

Transparency

Commonly dusted
Min. effective
0.0001%
Red flag below
0.00001%

Because it is effective at extremely low micromolar concentrations (0.1 µM), many products include it at 'homeopathic' levels purely for marketing. True efficacy requires precise dosing around 0.0001% to 0.01% to ensure metabolic stimulation without over-staining the skin.


The Formula

Solubility
Water
Optimal pH 6 – 7.5
0 7 14

Stability

Highly water-soluble but extremely sensitive to light and thermal degradation; requires opaque, airtight packaging. It becomes unstable in alkaline environments, resulting in a purple precipitate.

Synergies

  • Vitamin C
  • Vitamin E
  • Niacinamide

Conflicts

  • Strong oxidizing agents
  • Strong reducing agents
  • Alkali iodides
  • Dichromates
  • High-pH bases

Safety

CIR Status
Not reviewed
Max tested
0.05%
Sensitization risk Low

While banned for use in hair dyes in the EU/UK (Annex II), it remains permissible in leave-on skincare as an antioxidant. FDA status is established for pharmaceutical use, but specific cosmetic color additive approval for leave-on products is complex; concentration should remain below 0.05%.


Your Skin

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

Our Assessment

Valuable

A sophisticated mitochondrial antioxidant that offers unmatched cellular rejuvenation and collagen support when formulated at precise, stable concentrations.


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References