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WHEY PROTEIN.

Valuable CAS 84082-51-9 / HAIR CONDITIONING, SKIN CONDITIONING

Whey protein is a multi-functional ingredient derived from milk, rich in amino acids. It supports skin health by boosting collagen and elastin production, enhancing hydration, and offering antioxidant and anti-inflammatory benefits.

Skin-conditioning agent Humectant Moisturizer

Science

It promotes collagen and elastin synthesis for improved elasticity and reduces fine lines. It also enhances glutathione production, protects against oxidative stress, and offers gentle exfoliation with natural lactic acid.


Research

Medium confidence
Effective range 0.5–3%
Optimal

N/A

Key findings

  1. 01 INCIDecoder (wrinkle reduction)
  2. 02 Google Patents (general cosmetic range)
  3. 03 NIH (animal model, collagen/fibroblast increase)

Transparency

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

The highest reported use concentration (0.1%) in leave-on products is significantly below clinically observed effective ranges (0.5-3%), indicating potential sub-efficacious use.


The Formula

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Whey protein is water-soluble but denatures and coagulates around its isoelectric point (pH 4.5-5.0) and above 50°C, requiring preservation.


Safety

CIR Status
Safe as used
Max tested
0.1%
Sensitization risk Low

The CIR Panel deemed bovine milk proteins safe for cosmetic use, with no observed dermal irritation, sensitization, or immediate hypersensitivity reactions.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Valuable

A versatile protein offering anti-aging, hydration, and soothing benefits, though often used at concentrations below its clinically effective range in products.


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