Medik8 Peptides

Peptides are the firmness ingredient for people who cannot or will not use a retinoid, and the partner ingredient for people who do. Medik8 has put more into peptides than most brands, and Epios Skin stocks the whole of it as an authorised Australian stockist: Liquid Peptides and the twelve-peptide Liquid Peptides Advanced MP, Advanced Pro-Collagen + Peptide Cream and its refill, Eyelift Peptides for the eye area, and the three serums that pair a peptide with another active, Niacinamide Peptides, Bakuchiol Peptides and Oxy-R Peptides. Below is what each does and how to fit them into a routine.

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12 件产品

节省 $32.00
Medik8 Liquid Peptides Advanced MP 30% multi-peptide serum 30ml with product box
Medik8
Liquid Peptides Advanced MP
促销价格$128.00 原价$160.00

Dispatch by Friday

节省 20%
medik8 advanced pro-collagen peptide cream 50ml jar
Medik8
Advanced Pro-Collagen + Peptide Cream
促销价格$40.00 起 原价$50.00
Medik8 Firm Favourites gift set with Liquid Peptides Advanced MP and EXO-PDRN Prismatic+ serums
Medik8
Firm Favourites Pack
促销价格$232.00

Value: $320 (2 Full Sizes)

节省 $66.66
Medik8 Liquid Peptides Advanced MP 30ml and C-Tetra Advanced 30ml pump bottles side by side on a white background.
Medik8
Liquid Peptides Advanced MP + C-Tetra Advanced Duo
促销价格$236.34 原价$303.00

Valued at $303

Dispatch by Friday

节省 $22.40
Medik8 Liquid Peptides 30% complex multi-peptide serum 30ml with product box
Medik8
Liquid Peptides
促销价格$89.60 原价$112.00
节省 $21.00
Medik8 Niacinamide Peptides 30ml serum bottle on a white background
Medik8
Niacinamide Peptides
促销价格$84.00 原价$105.00

Dispatch by Friday

节省 $56.98
Medik8 Crystal Retinal 3 and Advanced Pro-Collagen + Peptide Cream duo
Medik8
Crystal Retinal 3 + Advanced Pro-Collagen Peptide Cream Duo
促销价格$202.02 原价$259.00

Valued at $259

Dispatch by Friday

节省 $22.00
Medik8 Bakuchiol Peptides Retinol Alternative Serum shown with its white outer box and a clear glass dropper bottle containing purple liquid, on a plain white background.
Medik8
Bakuchiol Peptides
促销价格$88.00 原价$110.00
节省 $27.00
Two Medik8 Oxy-R Peptides serum bottles with white labels and black activation caps on a white background.
Medik8
Oxy-R Peptides
促销价格$108.00 原价$135.00
Medik8 Luminous Lift skincare set in a rectangular orange box, containing a small dropper bottle and a larger cylindrical bottle with a clear cap, shown on a white background.
Medik8
Luminous Lift Kit
促销价格$122.00

Value: $177 (2 Full Sizes)

节省 $20.00
Medik8 Eyelift Peptides product packshot.
Medik8
Eyelift Peptides
促销价格$80.00 原价$100.00
节省 $30.00
medik8 advanced pro-collagen peptide cream refill 50ml with box
Medik8
Advanced Pro-Collagen + Peptide Cream Refill
促销价格$120.00 原价$150.00

What peptides actually do

Peptides are short chains of amino acids that act as messengers. Signal peptides, the Matrixyl family, tell fibroblasts to make collagen and elastin. Neuro-peptides such as Argireline soften the muscle contractions behind expression lines. Carrier peptides deliver copper for repair. None of them exfoliate or irritate, which is why they suit every skin type and every stage of life, including pregnancy, and why they layer under or over almost anything.

The Medik8 peptide range

How to use peptides in a Medik8 routine

Morning and evening, after vitamin C or your retinoid and before moisturiser. Liquid Peptides over C-Tetra is the brand's signature morning; the same serum over Crystal Retinal at night helps the skin through the adjustment weeks. One peptide serum per routine is plenty; the cream and eye product add to it without overlap.

Medik8 peptide questions

Liquid Peptides or Liquid Peptides Advanced MP?

Advanced MP if firmness and lines are the main goal and the budget allows; the original if you want the texture and the price. They do the same job to different degrees.

Do peptides replace retinol?

No, they complement it. Retinoids remain the most evidenced ingredient for lines; peptides add to the result and are the better choice when a retinoid is not possible.

Are Medik8 peptides safe in pregnancy?

Yes, every product on this page is suitable, which is one reason the range is popular during that period.

Is Epios Skin an authorised Medik8 stockist?

Yes. Every Medik8 product we sell comes through the authorised Australian supply chain, so it is genuine, in date and stored correctly. Epios Skin is run by a doctor-led skin clinic in Sydney, and Medik8 is the range our clinical team reaches for most.

Brand quick facts

Founded

2009

Origin

London, United Kingdom

Key technology

CSA Philosophy · Crystal Retinal

The approach

Medik8's CSA Philosophy is the clearest organising idea in skincare: vitamin C and sunscreen by day, vitamin A by night. Three ingredients, two steps, applied consistently.

The reasoning is that these three have more independent clinical evidence behind them than anything else available without prescription, and that most routines fail from complexity rather than from missing ingredients.

The brand's other distinguishing choice is retinaldehyde, usually shortened to retinal. Where most over-the-counter products use retinol, which converts to retinoic acid in two enzymatic steps, retinal sits one step closer. That means it acts faster at equivalent concentration. Medik8 pioneered its use in mainstream skincare and their Crystal Retinal range is built on it.

Formulations are developed and manufactured in-house at their innovation centre outside London. The brand is B Corp certified.

What to know

Medik8 is widely available. Unlike some of the ranges we carry, Medik8 sells directly in Australia and through a number of retailers. We stock it because it fits alongside what else we hold, not because it is hard to find.

Retinal is not retinol. They are different molecules at different points in the same conversion pathway. Retinal is closer to the active form, which generally means faster results and, at equivalent strength, a similar or slightly greater adjustment period. Comparing a retinal percentage to a retinol percentage is not like for like.

The range is deliberately simple. Fewer products, clearer roles. If you find multi-step routines difficult to sustain, that structure is the point rather than a limitation.

L'Oréal acquired a majority stake in 2025. The founder remains involved and formulation continues in-house, but the brand is no longer independently owned. Worth knowing if that matters to you.