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Define Lower Face:Visibly lifts and sculpts the jawline, restoring facial definition blurred by aging.
Restore Facial Balance:Improves the appearance of flattened or sunken cheeks, helping revive natural curves and harmonious proportions — without heaviness.
Smooth Deep Lines:Softens nasolabial folds and marionette lines formed by collagen loss and sagging.
Reinforce Skin Structure:Dual collagen technology enhances the skin’s internal support network, improving firmness, elasticity, and long-term structural resilience.
After cleansing, apply the serum to the face and gently massage until absorbed. Apply in the morning and night after cleansing the face. Use half a vial each time. One vial per day.
Water and collagen (Type III & Type XVII) are the only ingredients.
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Dual is not just a serum — it's a structural skincare solution.
Dual is formulated with clinical precision — only two ingredients: purified water and high-purity, bioidentical Type III and XVII collagen.
No fragrance. No filler. No unnecessary complexity.
A minimal formula for maximum structural impact
A: There are two main differences:
A: The more doesn't always mean the merrier. ProtYouth follows the concept of minimalism skincare, replenishing collagen instead of stimulating skin for an reaction, supported by biotechnological materials. We focus on offering optimal care for the skin, reducing risks of sensitivity and slowing the aging process. Compared with complex and confusing routines, our routine boils down to fewer ingredients, simpler skincare routine, and smarter results.
A: It refers to the unique core curvature angle of 164.88°, which is highly similar to the natural human collagen structure. This ensures the stability and precise structure of the collagen, improving its efficacy in stabilizing and effectively supporting the skin.
A: "Dual collagen" refers to the addition of both type III and type XVII recombinant collagen. T8 and T16 only contain type III collagen, while the dual collagen serum also includes type XVII collagen, which enhances the effect by supporting deeper skin layers, providing superior skin support, improving texture, and offering a synergistic effect that amplifies the overall benefits for firmer, smoother skin.