Whey Protein
Also known as: Milk Serum Protein
Whey protein is a mixture of proteins isolated from whey, the liquid material created as a byproduct of cheese production. It is a complete protein, meaning it contains all nine essential amino acids. In cosmetics, it is sometimes used for its conditioning and film-forming properties.
ProteinNot vegan
BenefitMinimal 0.5 / 4
Hydration i0.5 / 4
Whether the ingredient helps increase the skin’s water content — humectants that attract water, ingredients that reduce water loss, or ones that make skin feel less dry.
RiskLow 1 / 4
Sensitization i0.5 / 4
Risk of allergic contact dermatitis or immune-based reactions. Fragrance allergens, preservatives, botanicals, and some dyes may score here.
Rated by SpottyLabs' ingredient methodology, independent of brands.
What it helps with
- conditions skin/hair
- forms protective film
Things to watch
- potential for allergic reaction
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Products with Whey Protein
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Frequently asked questions
- Is whey protein suitable for vegans?
- No, whey protein is derived from milk, making it an animal-derived ingredient and not suitable for vegans.
- What does whey protein do in skincare products?
- In skincare, whey protein can act as a conditioning agent, helping to moisturize and soften the skin. It may also form a light film on the skin, providing a temporary smoothing effect.
