Loading...
Skinfix Target+ Brighten + Firm 15% Vitamin C Serum scores 9.2/9.8 vs Jack Black Protein Booster Skin Serum at 8.5/9.8. Skinfix Target+ Brighten + Firm 15% Vitamin C Serum wins for hydration.
Skinfix Target+ Brighten + Firm 15% Vitamin C Serum edges ahead, winning 2 of 5 attributes.
Scores last verified: June 2026
20 unique
9 in common
23 unique
Where Skinfix Target+ Brighten + Firm 15% Vitamin C Serum really shines is hydration efficacy, scoring 8.8 compared to Jack Black Protein Booster Skin Serum's 7.8. With Glycerin, Isopentyldiol, and Aloe Barbadensis Leaf Juice in its top ingredients, Skinfix Target+ Brighten + Firm 15% Vitamin C Serum delivers stronger moisture-binding capability.
Active Ingredient Strength is another area of separation. Skinfix Target+ Brighten + Firm 15% Vitamin C Serum scores 5.8 here versus 5.3 for Jack Black Protein Booster Skin Serum. That difference comes down to how each formula is built — the ingredient list tells the story.
Skinfix Target+ Brighten + Firm 15% Vitamin C Serum brings Tetrahexyldecyl Ascorbate, Oligopeptide-2, and Hexapeptide-11 as actives, while jack Black Protein Booster Skin Serum relies on Camellia Sinensis Leaf Extract, Dipeptide Diaminobutyroyl Benzylamide Diacetate, and Retinyl Palmitate. Both approaches have merit, but the positioning and supporting ingredients make the difference.
Jack Black Protein Booster Skin Serum is better if you have
Skinfix Target+ Brighten + Firm 15% Vitamin C Serum is better if you have
Both sit in the premium bracket, so value comes down to formulation quality. Skinfix Target+ Brighten + Firm 15% Vitamin C Serum gets the nod here with its 9.2 overall score — you're getting more for a similar outlay.
Skinfix Target+ Brighten + Firm 15% Vitamin C Serum edges ahead with a slightly stronger formulation, but Jack Black Protein Booster Skin Serum is still a solid pick.
Based on ingredient analysis, Skinfix Target+ Brighten + Firm 15% Vitamin C 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.
Some links on this site are affiliate links. We may earn a commission from purchases made through our links, at no extra cost to you. This helps us keep Gracie free and independent.
© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.