See this week's best dupes

HerDupes
Medik8 Crystal Retinal 10
The Ordinary Retinal 0.2% Emulsion
−76%per oz
Medik8 · $111The Ordinary · $13.41
Shared
Retinal
The trade-off
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.
Sizes
30 ml against 15 ml

Medik8 Crystal Retinal 10 dupe

Crystal Retinal 10 costs about $111 for 30 ml ($109.42 / fl oz). The closest match below is The Ordinary Retinal 0.2% Emulsion at $13.41, about 76% less per ounce. Each pair is compared on format, finish and key ingredients, including what the dupe doesn't do.

Night serum with encapsulated retinaldehyde at 0.1%, the tenth step of Medik8's Crystal Retinal range, with hyaluronic acid and vitamin E. For skin already used to retinoids.

Original
$111
Cheapest dupe
$13.41
You save
76%

Amazon prices as of Sep 25, 2026, 8:40 PM ET, subject to change: the price on Amazon at checkout is the one that applies.

The dupe, side by side

Cost per fl oz

Medik8$109.42 / fl oz
The Ordinary$26.44 / fl oz

$97.59 less at checkout than the original.

Size
Original · Medik830 ml
Dupe · The Ordinary15 ml
Key ingredients
Original · Medik8Retinal, Sodium hyaluronate, Vitamin E
Dupe · The OrdinaryRetinal, Bisabolol

What matches

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

What the dupe 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.

Questions

What is the best dupe for Medik8 Crystal Retinal 10?

The Ordinary Retinal 0.2% Emulsion at about $13.41. Same retinoid: retinaldehyde, one step closer to retinoic acid than retinol, in a light emulsion for night use.

How much cheaper is The Ordinary Retinal 0.2% Emulsion than Crystal Retinal 10?

Crystal Retinal 10 costs about $111 for 30 ml, or $109.42 / fl oz. The Ordinary Retinal 0.2% Emulsion works out at $26.44 / fl oz, roughly 76% less per ounce.

What does The Ordinary Retinal 0.2% Emulsion do worse than Crystal Retinal 10?

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.

Skincare dupe guides

$13.41

The Ordinary · 76% less

Buy the dupe

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