Verdict: The Ordinary Retinol 0.5% in Squalane ($6) is a 78% match dupe for PETER THOMAS ROTH Retinol Fusion PM ($65). Full price and ingredient comparison below.
By the BeautyFlow Research Team · Updated August 2026
The Original
Retinol Fusion PM
$65The Dupe
Retinol 0.5% in Squalane
$6Curated by BeautyFlow editors
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Ingredient Comparison
Ingredient data coming soon
Frequently Asked Questions
Is The Ordinary Retinol 0.5% in Squalane a good dupe for PETER THOMAS ROTH Retinol Fusion PM?
Yes — The Ordinary Retinol 0.5% in Squalane is a 78% match for PETER THOMAS ROTH Retinol Fusion PM based on ingredient and formula comparison.
How much cheaper is The Ordinary Retinol 0.5% in Squalane than PETER THOMAS ROTH Retinol Fusion PM?
The Ordinary Retinol 0.5% in Squalane costs $6 versus $65 for PETER THOMAS ROTH Retinol Fusion PM — a saving of $59.
What is the difference between PETER THOMAS ROTH Retinol Fusion PM and The Ordinary Retinol 0.5% in Squalane?
The main difference is price — PETER THOMAS ROTH Retinol Fusion PM costs $59 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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