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Paula's Choice Clinical 1% Retinol Treatment scores 8.7/9.8 vs Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid at 8.3/9.8. Paula's Choice Clinical 1% Retinol Treatment wins for active ingredients.
Paula's Choice Clinical 1% Retinol Treatment edges ahead, winning 3 of 5 attributes.
Scores last verified: June 2026
40 unique
7 in common
10 unique
Where Paula's Choice Clinical 1% Retinol Treatment really shines is active ingredient strength, scoring 7.1 compared to Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid's 3.5. Its formula features Retinol, Tetrahexyldecyl Ascorbate, and Palmitoyl Oligopeptide in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. Paula's Choice Clinical 1% Retinol Treatment scores 9.8 here versus 8.5 for Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid. That difference comes down to how each formula is built — the ingredient list tells the story.
Paula's Choice Clinical 1% Retinol Treatment brings Retinol, Tetrahexyldecyl Ascorbate, and Palmitoyl Oligopeptide as actives, while saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid relies on Niacinamide. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Paula's Choice Clinical 1% Retinol Treatment is better if you have
Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid is better if you have
At mid-range pricing with a score of 8.7, Paula's Choice Clinical 1% Retinol Treatment delivers strong value. Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid sits at the luxury level with a 8.3 score — the extra cost doesn't translate to better scores here.
Paula's Choice Clinical 1% Retinol Treatment edges ahead with a slightly stronger formulation, but Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid is still a solid pick.
Based on ingredient analysis, Paula's Choice Clinical 1% Retinol Treatment scores higher overall. See the full score breakdown above for details on each attribute.
Yes, they share common ingredients. Check the ingredient face-off section above for a detailed comparison.
The key differences are in their active ingredients and formulation approach. Check the attribute battle above for a detailed breakdown.
Honest skincare intel. No jargon, no gatekeeping — just the ingredients decoded.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.