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Paula's Choice 10% Niacinamide Booster scores 9.2/9.8 vs Sincerely Yours Hit Refresh Soothing and Hydrating Serum Mist with Cucumber Extract at 8.5/9.8. Paula's Choice 10% Niacinamide Booster wins for active ingredients.
Paula's Choice 10% Niacinamide Booster edges ahead, winning 3 of 5 attributes.
Scores last verified: June 2026
15 unique
7 in common
30 unique
Where Paula's Choice 10% Niacinamide Booster really shines is active ingredient strength, scoring 6.7 compared to Sincerely Yours Hit Refresh Soothing and Hydrating Serum Mist with Cucumber Extract's 5.1. Its formula features Niacinamide, Acetyl Glucosamine, and Ascorbyl Glucoside in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. Paula's Choice 10% Niacinamide Booster scores 7.7 here versus 6.8 for Sincerely Yours Hit Refresh Soothing and Hydrating Serum Mist with Cucumber Extract. That difference comes down to how each formula is built — the ingredient list tells the story.
Paula's Choice 10% Niacinamide Booster brings Niacinamide, Acetyl Glucosamine, and Ascorbyl Glucoside as actives, while sincerely Yours Hit Refresh Soothing and Hydrating Serum Mist with Cucumber Extract relies on Gluconolactone, Niacinamide, and Ceramide Np. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Paula's Choice 10% Niacinamide Booster is better if you have
Sincerely Yours Hit Refresh Soothing and Hydrating Serum Mist with Cucumber Extract is better if you have
Both sit in the mid-range bracket, so value comes down to formulation quality. Paula's Choice 10% Niacinamide Booster gets the nod here with its 9.2 overall score — you're getting more for a similar outlay.
Paula's Choice 10% Niacinamide Booster edges ahead with a slightly stronger formulation, but Sincerely Yours Hit Refresh Soothing and Hydrating Serum Mist with Cucumber Extract is still a solid pick.
Based on ingredient analysis, Paula's Choice 10% Niacinamide Booster 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.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.