Verdict: SEPHORA COLLECTION SUPERMASK - The Mud Mask ($6) is a 73% match dupe for PETER THOMAS ROTH Irish Moor Mud Purifying Black Mask ($58). Full price and ingredient comparison below.
By the BeautyFlow Research Team · Updated August 2026
The Original
Irish Moor Mud Purifying Black Mask
$58The Dupe
SUPERMASK - The Mud Mask
$6Curated by BeautyFlow editors
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Ingredient Comparison
Ingredient data coming soon
Ingredient data coming soon
Frequently Asked Questions
Is SEPHORA COLLECTION SUPERMASK - The Mud Mask a good dupe for PETER THOMAS ROTH Irish Moor Mud Purifying Black Mask?
Yes — SEPHORA COLLECTION SUPERMASK - The Mud Mask is a 73% match for PETER THOMAS ROTH Irish Moor Mud Purifying Black Mask based on ingredient and formula comparison.
How much cheaper is SEPHORA COLLECTION SUPERMASK - The Mud Mask than PETER THOMAS ROTH Irish Moor Mud Purifying Black Mask?
SEPHORA COLLECTION SUPERMASK - The Mud Mask costs $6 versus $58 for PETER THOMAS ROTH Irish Moor Mud Purifying Black Mask — a saving of $52.
What is the difference between PETER THOMAS ROTH Irish Moor Mud Purifying Black Mask and SEPHORA COLLECTION SUPERMASK - The Mud Mask?
The main difference is price — PETER THOMAS ROTH Irish Moor Mud Purifying Black Mask costs $52 more. Formulas are closely matched in our comparison, though packaging and shade ranges may differ. See the full ingredient table on this page for the exact overlap.
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