Ingredient guide · P

Peptides

Peptides are short chains of amino acids that act as building blocks for proteins like collagen and elastin in the skin. In skincare, they are popular ingredients that help support the skin’s natural firmness and elasticity. They are gentle yet effective, making them a favourite in anti-ageing creams, serums and eye treatments.

Peptides — Peptides used in cosmetics are typically produced in laboratories through the controlle… | UK Lips ingredient guide

How it works in skincare

In cosmetics and skincare, peptides function as signalling molecules that communicate with skin cells to encourage the production of collagen, elastin and other structural proteins. When applied topically they penetrate the upper layers of the skin and help to visibly improve firmness and texture while supporting the skin’s natural repair processes. Because they are relatively small molecules, many peptides are formulated to be easily absorbed without irritation, making them suitable for daily use in a wide range of moisturisers, serums and masks.

Key benefits

  • Helps improve skin firmness and elasticity
  • Visibly reduces the appearance of fine lines and wrinkles
  • Supports a smoother, more even skin texture
  • Enhances skin hydration and plumpness
  • Strengthens the skin’s natural barrier
  • Suitable for gentle daily use around the delicate eye area

Best for

mature skin, dry skin, normal skin, sensitive skin, ageing skin

Where it comes from

Peptides used in cosmetics are typically produced in laboratories through the controlled breakdown of plant or animal proteins, or synthesised from individual amino acids. Common sources include rice, soy, wheat and collagen derived from sustainable marine or bovine origins.

Products with Peptides

Not every product on UK Lips lists a full ingredient breakdown — so there may be many more formulas that contain Peptides than we can show here. These are the comparisons where we’ve confirmed it in the listed ingredients.

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