Ingredient guide

Peptide Complex

Peptide Complex is a blend of short chains of amino acids that act as building blocks for skin proteins. Commonly used in anti-ageing serums and creams, it helps support the skin’s natural firmness and elasticity. Shoppers like it for its ability to deliver visible smoothing and plumping without irritation.

Peptide Complex — Peptides used in cosmetics are typically produced in laboratories by breaking down plan… | UK Lips ingredient guide

How it works in skincare

In skincare formulations, Peptide Complex works by signalling to skin cells to increase production of collagen, elastin and hyaluronic acid. The small molecular size allows the peptides to penetrate the upper layers of the epidermis, where they help reinforce the skin’s structural matrix, improving texture and reducing the appearance of fine lines and loss of firmness over time.

Key benefits

  • Helps reduce the appearance of fine lines and wrinkles
  • Improves skin firmness and elasticity
  • Enhances skin smoothness and texture
  • Supports natural collagen production
  • Provides a plumping effect
  • Gentle enough for daily use

Best for

mature skin, ageing skin, dry skin, dull skin, loss of firmness

Where it comes from

Peptides used in cosmetics are typically produced in laboratories by breaking down plant or animal proteins, with many modern formulations derived from sustainable plant sources such as rice, soy or wheat.

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