Cetaphil Sheer Mineral Face Liquid Sunscreen SPF 50

−81%per oz

Tatcha · $64Cetaphil · $12

Shared: Zinc oxide, Niacinamide
The trade-off: Cetaphil has none of Tatcha's squalane, silk or hyaluronic acid and no tint, and it dries matte where Tatcha dries radiant, so the zinc is left to go sheer on its own.
Sizes: 50 ml against 50 ml

Tatcha The Silk Sunscreen SPF 50 dupe

The Silk Sunscreen SPF 50 costs about $64 for 50 ml ($37.85 / fl oz). The closest match below is Cetaphil Sheer Mineral Face Liquid Sunscreen SPF 50 at $12, about 81% less per ounce. Each pair is compared on format, finish and key ingredients, including what the dupe doesn't do.

Mineral sunscreen with 10% zinc oxide as its only filter, in a silky fluid with a sheer iron-oxide tint. Niacinamide, squalane and hydrolyzed silk do the skincare; water- and sweat-resistant, non-comedogenic.

Original: $64
Cheapest dupe: $12
You save: 81%

Prices checked 25 September 2026; Amazon's price today may differ.

Buy the $12 dupe See the original

The dupe, side by side

The original

Tatcha

The Silk Sunscreen SPF 50

$64

$37.85 / fl oz

−81%per oz

Cost per fl oz

Tatcha$37.85 / fl oz

Cetaphil$7.10 / fl oz

$52 less at checkout than the original.

Size: Original · Tatcha50 ml; Dupe · Cetaphil50 ml
Key ingredients: Original · TatchaZinc oxide, Niacinamide, Hydrolyzed silk, Squalane; Dupe · CetaphilZinc oxide, Niacinamide, Vitamin E, Bisabolol

What matches

Both protect with zinc oxide alone, 12% here against Tatcha's 10%, in an almost identical silicone base, and both add niacinamide, vitamin E, bisabolol and allantoin.

What the dupe does worse

Cetaphil has none of Tatcha's squalane, silk or hyaluronic acid and no tint, and it dries matte where Tatcha dries radiant, so the zinc is left to go sheer on its own.

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Questions

What is the best dupe for Tatcha The Silk Sunscreen SPF 50?

Cetaphil Sheer Mineral Face Liquid Sunscreen SPF 50 at about $12. Both protect with zinc oxide alone, 12% here against Tatcha's 10%, in an almost identical silicone base, and both add niacinamide, vitamin E, bisabolol and allantoin.

How much cheaper is Cetaphil Sheer Mineral Face Liquid Sunscreen SPF 50 than The Silk Sunscreen SPF 50?

The Silk Sunscreen SPF 50 costs about $64 for 50 ml, or $37.85 / fl oz. Cetaphil Sheer Mineral Face Liquid Sunscreen SPF 50 works out at $7.10 / fl oz, roughly 81% less per ounce.

What does Cetaphil Sheer Mineral Face Liquid Sunscreen SPF 50 do worse than The Silk Sunscreen SPF 50?

Cetaphil has none of Tatcha's squalane, silk or hyaluronic acid and no tint, and it dries matte where Tatcha dries radiant, so the zinc is left to go sheer on its own.