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Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid scores 8.3/9.8 and Sunday Riley B3 Nice 10% Niacinamide Serum scores 8.5/9.8 — a near-tie where your skin type decides the winner.
These two are neck and neck — just 0.2 points apart.
Scores last verified: June 2026
12 unique
36 unique
These two serums take different paths to a similar destination. Both formulas include solid hydrating ingredients, and the overall scores reflect that — the gap here is genuinely slim.
Hydration Efficacy is another area of separation. Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid scores 8.5 here versus 5.1 for Sunday Riley B3 Nice 10% Niacinamide Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
Sunday Riley B3 Nice 10% Niacinamide Serum brings Niacinamide, Resveratrol, and Asiaticoside 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.
Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid is better if you have
Sunday Riley B3 Nice 10% Niacinamide Serum is better if you have
At luxury pricing with a score of 8.3, Saint Jane Beauty Star Flower Hydration Serum with Niacinamide and Hyaluronic Acid is a decent pick. Sunday Riley B3 Nice 10% Niacinamide Serum sits at the premium level with a 8.5 score — the higher investment pays off in formulation quality.
It's a close call — both products score within 0.3 points of each other. Your choice depends on your specific skin concerns.
Based on ingredient analysis, Sunday Riley B3 Nice 10% Niacinamide Serum 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.