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The Science

Biochemistry,refined

Peptides are short chains of amino acids — the same building blocks your skin is made of. We build every formula around them.

Peptides, explained

Small chains, considered results

A peptide is a short sequence of amino acids. In skincare, specific sequences are chosen for how they interact with the skin's surface — some act as messengers, others carry trace minerals, and others help soften the look of expression lines.

Because each peptide has a distinct role, we rarely rely on just one. Our formulas combine multi-peptide chains with supporting actives such as NAD+, PDRN and hyaluronic acid.

Worth Aesthetics NAD+ PDRN Serum on marble

Three families

How peptides work

  1. 01

    Signal peptides

    The messengers

    Short chains of amino acids that act as messages at the skin's surface. Formulas built around them help skin look smoother, firmer and more refined.

  2. 02

    Carrier peptides

    The escorts

    Peptides such as GHK-Cu bind trace elements like copper. They're prized for supporting the look of resilient, even-toned skin.

  3. 03

    Expression-line peptides

    The softeners

    Peptides such as Snap-8 are chosen to help soften the look of lines formed by everyday expression — around the eyes and across the forehead.

Key actives

Named, measured, purposeful

The actives at the heart of the Worth Aesthetics collection.

  • Snap-8

    Acetyl Octapeptide-3

    An eight-amino-acid signal peptide, an extended cousin of the classic hexapeptide, chosen to help soften the look of expression lines around the eyes and forehead.

  • GHK-Cu

    Copper Tripeptide-1

    A naturally occurring tripeptide bound to copper. Prized in skincare for supporting the look of firm, resilient and even-toned skin.

  • NAD+

    Nicotinamide Adenine Dinucleotide

    A coenzyme found in every living cell. In skincare it is included to help skin look energised, revitalised and luminous.

  • PDRN

    Polydeoxyribonucleotide

    DNA fragments celebrated in Korean skincare for a smoother, bouncier-looking complexion with a healthy glow.

  • Hyaluronic Acid

    Sodium Hyaluronate

    A humectant that attracts and binds water at the surface, leaving skin feeling plumped, supple and deeply hydrated.

  • Palmitoyl Tripeptide-1

    Palmitoyl Tripeptide-1

    A lipid-linked signal peptide included to help skin look smoother and more refined.

How we formulate

Our principles

  • Multi-peptide chains

    Rather than a single hero, each formula pairs complementary peptides that are chosen to work together.

  • Protective packaging

    Airless pumps and heavy frosted glass help shield sensitive actives from light and air, so the last drop is as considered as the first.

  • Precision, not excess

    Every ingredient earns its place. No filler actives for label appeal — only what serves the formula.

  • Honest claims

    We describe what our products do for the look and feel of skin, and we never overstate it.

Good to know

Peptide questions

Visit the help centre
How do I layer my Worth Aesthetics products?

Apply from thinnest to richest: cleanse, then press 3–5 drops of serum into face and neck, and finish with a spatula-measured layer of cream. Use morning and evening, and follow with SPF in the morning.

Can I use peptides with retinol or vitamin C?

Peptides are generally easy to pair. Many people use vitamin C in the morning and retinoids at night alongside their peptide serum. If your skin is sensitive, introduce one new product at a time.

Are your products suitable for sensitive skin?

Our formulas are designed to be gentle, but everyone's skin is different. We always recommend a patch test on the inner arm 24 hours before first use. Discontinue use if redness or irritation occurs.

How long does a bottle last?

Used morning and evening as directed, a 30 ml serum typically lasts around six to eight weeks. Once opened, use within 12 months.

When will I see results?

Skin renews itself gradually. Most people notice skin feeling more hydrated straight away, with smoother, firmer-looking skin building over several weeks of consistent use.

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