Peptides

…

Peptides are essential building blocks of proteins that keep the skin looking smooth, firm, and youthful. Applied topically, they can help to stimulate collagen and boost elasticity, visibly reducing the appearance of fine lines and wrinkles. Our innovative peptide skincare products feature expertly engineered peptide combinations for visible brightening, clarifying, and hydrating effects, delivering maximum results.

Enlarged pores & blemishes
Niacinamide Peptides 10% Niacinamide Serum with Peptides & NAG
Full size (30ml) | $105
Join Our Me&Medik8 Rewards Programme

Join Our Me&Medik8 Rewards Programme

For Early Access To Our Biggest Skincare Savings Of The Year

JOIN NOW
Discover the No.1 Retinal Serum Worldwide

Discover the No.1 Retinal Serum Worldwide

CRYSTAL RETINAL®

SHOP THE AWARD-WINNING, AGE-DEFYING VITAMIN A NIGHT SERUM

SHOP NOW
Fine lines & wrinkles
Eyelift™ Peptides Age-Defying Firming Gel
Full Size | $100

Frequently Asked Questions

Which types of peptides are most effective?

Peptides are a diverse group of active ingredients, each designed to target specific skin concerns. 

  • Signal peptides help stimulate collagen production, 
  • Carrier peptides support skin repair
  • Neurotransmitter peptides work to visibly soften the appearance of expression lines.

The most advanced formulations combine multiple peptide types to deliver comprehensive anti-ageing benefits and support overall skin renewal.

Liquid Peptides Advanced is Medik8’s next-generation peptide serum, formulated with a 30% multi-peptide blend and powered by Dual MiniProteins™ to visibly target both early and deep-set wrinkles.

Are peptides suitable for sensitive skin?

Yes, peptides are generally very well tolerated, even by sensitive skin. Their gentle nature makes them ideal for supporting skin that’s prone to irritation, as they help to calm, hydrate and reinforce the skin barrier. As with any new product, we recommend patch testing first, especially if your skin is reactive or compromised.

Can you use peptides when pregnant?

Peptides are generally considered safe to use during pregnancy. Unlike ingredients such as retinoids, peptides do not pose known risks and can continue to support the skin through hydration and repair. However, if you’re unsure, it’s always best to check with a healthcare provider.

Can you use peptides with retinol?

Peptides and retinol aren’t rivals, they’re complementary. While retinol encourages skin renewal and boosts collagen production, it can sometimes cause dryness or irritation, particularly for sensitive skin. Peptides, on the other hand, help to firm, smooth and support the skin barrier more gently.

Using both in a balanced routine can deliver powerful results. Peptides can help buffer the effects of retinol, making the combination ideal for visibly improving signs of ageing without compromising comfort. 

Medik8’s Crystal Retinal pairs well with Liquid Peptides in a balanced evening routine.

Which peptides are best for anti-ageing?

Different peptides target different signs of ageing, which is why combining them often delivers the most visible results. Signal peptides help stimulate collagen production, while neurotransmitter peptides visibly smooth expression lines. Carrier peptides support skin regeneration, and enzyme-inhibitor peptides help slow the breakdown of collagen and elastin.

Medik8’s Liquid Peptides Advanced features a 30% blend of 10 carefully selected peptides, including our pioneering Dual MiniProteins™. This next-generation formula is clinically proven to visibly reduce both expression lines and deeper wrinkles, offering comprehensive, targeted support for firmer, smoother-looking skin[1].

[1]To verify visit: https://www.medik8.com/pages/circana-group-claim-letters-liquid-peptides-advanced-mp

Do I use Niacinamide Peptides in the morning or in the evening?

Both. Niacinamide Peptides can be used after cleansing day or night.

Can I use Exo-PDRN Prismatic+ with Liquid Peptides Advanced MP?

Absolutely. Exo-PDRN Prismatic+ and Liquid Peptides Advanced MP make an ideal age-defying duo. Use Liquid Peptides Advanced MP to target expression lines and build visible wrinkle reduction and Exo-PDRN Prismatic+ to support long-term skin rejuvenation, resilience and recovery.

When and how should I apply Bakuchiol Peptides?

Bakuchiol Peptides can be applied both morning and night. After cleansing in the morning and evening, massage 6 drops across the face, neck and décolletage. Follow with a sunscreen (AM) and moisturiser (PM).

Do I use Niacinamide Peptides in the morning or in the evening?

Both. Niacinamide Peptides can be used after cleansing day or night.

Can I use Exo-PDRN Prismatic+ with Liquid Peptides Advanced MP?

Absolutely. Exo-PDRN Prismatic+ and Liquid Peptides Advanced MP make an ideal age-defying duo. Use Liquid Peptides Advanced MP to target expression lines and build visible wrinkle reduction and Exo-PDRN Prismatic+ to support long-term skin rejuvenation, resilience and recovery.

When and how should I apply Bakuchiol Peptides?

Bakuchiol Peptides can be applied both morning and night. After cleansing in the morning and evening, massage 6 drops across the face, neck and décolletage. Follow with a sunscreen (AM) and moisturiser (PM).

Shop by Peptides

Skin-signalling science

Peptides are short chains of essential amino acids that act as messengers, signalling the skin to boost firmness, smoothness, and visible elasticity. By targeting expression lines and loss of tone, they offer a refined approach to age-defying skincare.

Flexible, routine-friendly performance

Suitable for both morning and evening use, peptide serums layer easily after cleansing and before moisturiser. For restorative results, peptides and retinal are a dream duo. Our Liquid Peptides Advanced MP makes a perfect pairing with Crystal Retinal to support a more youthful-looking complexion. Prefer a clarifying finish? Niacinamide Peptides combines 10% niacinamide with peptides to refine the look of pores and smooth congested texture, leaving oily and blemish-prone skin with a fresh, glass-like glow.

Developed with clinical integrity

Our peptide range has been developed using advanced, precision technologies tailored to each formula. From our proprietary MiniProteins™ for enhanced performance, to multi-peptide complexes featuring Matrixyl and carnosine, every product is backed by clinical insight to help visibly improve your skin and its individual needs.