Is Medik8 on Amazon real?

Who sells each Medik8 product on Amazon

• Crystal Retinal 10

  Sold by Medik8, the brand's store

  $111Buy on Amazon

• Liquid Peptides Multi-Peptide Serum

  Sold by Medik8, the brand's store

  $68Buy on Amazon

• C-Tetra Lipid Vitamin C Serum

  Sold by Medik8, the brand's store

  $53Buy on Amazon

Amazon prices as of Oct 8, 2026, 6:00 PM ET, subject to change: the price on Amazon at checkout is the one that applies. The seller shown is the one in the buy box, the offer Add to Cart buys.

How to check who sells Medik8 on Amazon

1. Browsing from outside the US, set a US delivery address first; any ZIP will do, 10001 works. Without one Amazon fills the buy box with import and reseller offers. That is how Charlotte Tilbury, Dyson and Clinique once looked unstocked to us, when Amazon.com sold all three.
2. Read the two lines beside Add to Cart, “Ships from” and “Sold by”. For Medik8 you want Medik8's own store (“Medik8”).
3. If another name is there, open “Other sellers on Amazon”. Amazon.com or the brand sometimes sells the same listing one row down, at the same price or close to it.
4. Once it arrives, check the batch code printed on the box and on the product: checkfresh.com decodes Medik8's into a production date.

Cheaper matches for Medik8, sold by Amazon.com or their brand

1. 
   

   The Ordinary Multi-Peptide + HA Serum

   for Medik8 Liquid Peptides Multi-Peptide Serum

   $15.89 $19.90vs $68−77% per oz

   $15.66 / fl oz against $67.03 / fl oz. Both list Acetyl hexapeptide-8 and Matrixyl 3000 and Hyaluronic acid.

   #83 in Facial Serums on Amazon

   Five of the same peptides in a water-based serum with hyaluronic acid and glycerin: acetyl hexapeptide-8 and pentapeptide-18 for expression lines, palmitoyl tripeptide-1 and palmitoyl tetrapeptide-7 (Matrixyl 3000), and palmitoyl tripeptide-38.

   What it does worse: Medik8 adds four more, palmitoyl tripeptide-5, tetrapeptide-21, a copper heptapeptide and heptapeptide-15 palmitate, with panthenol and carnosine, while The Ordinary adds the SYN-AKE dipeptide, a ferment lysate and amino acids.

   Buy the dupeFull comparison

2. 
   

   The Ordinary Retinal 0.2% Emulsion

   for Medik8 Crystal Retinal 10

   $14.90vs $111−73% per oz

   $29.38 / fl oz against $109.42 / fl oz. Both list Retinal.

   Same retinoid: retinaldehyde, one step closer to retinoic acid than retinol, in a light emulsion for night use.

   What it does worse: Medik8 encapsulates it in cyclodextrin at 0.1% with hyaluronic acid and vitamin E, while The Ordinary uses 0.2%, twice the strength, with bisabolol and ginger to calm it, so start it every third night.

   Buy the dupeFull comparison

3. 
   

   The Ordinary Ascorbyl Tetraisopalmitate Solution 20% in Vitamin F

   for Medik8 C-Tetra Lipid Vitamin C Serum

   $20.50vs $53−61% per oz

   $20.21 / fl oz against $52.25 / fl oz. Both list Tetrahexyldecyl ascorbate.

   Same vitamin C ester in the same kind of water-free serum: tetrahexyldecyl ascorbate, the oil-soluble form that stings far less than ascorbic acid, with jojoba oil on both labels.

   What it does worse: Medik8 calls its serum 7% vitamin C and carries it in silicones with vitamin E and grapefruit peel oil, which brings citral, limonene and linalool, while The Ordinary's is 20% tetrahexyldecyl ascorbate in coconut alkanes with ethyl linoleate and squalane and no fragrance, so it sits oilier on the skin.

   Buy the dupeFull comparison

All Medik8 dupes

Questions