Where INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid really shines is active ingredient strength, scoring 9.8 compared to innisfree Retinol Green Tea PDRN™ Toner for Smoothing & Firming's 5.5. Its formula features Tetrahexyldecyl Ascorbate, Niacinamide, and Ascorbic Acid in high positions, signalling meaningful concentrations.
Hydration Efficacy is another area of separation. innisfree Retinol Green Tea PDRN™ Toner for Smoothing & Firming scores 6.4 here versus 5.8 for INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid. That difference comes down to how each formula is built — the ingredient list tells the story.
INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid brings Tetrahexyldecyl Ascorbate, Niacinamide, and Ascorbic Acid as actives, while innisfree Retinol Green Tea PDRN™ Toner for Smoothing & Firming relies on Lactobacillus Ferment Lysate, Niacinamide, and Adenosine. Both approaches have merit, but the positioning and supporting ingredients make the difference.
At premium pricing with a score of 9.5, INNBEAUTY PROJECT Pro C Serum Brightening Solution with 15% Vitamin C + Ferulic Acid delivers strong value. innisfree Retinol Green Tea PDRN™ Toner for Smoothing & Firming sits at the mid-range level with a 9.0 score — the extra cost doesn't translate to better scores here.
