Solstice C Serum
Daily brightening, redefined.
A next-generation brightening and hydrating serum powered by a breakthrough peptide to visibly reduce the look of dark spots and restore clarity. With a silky texture, this precision formula targets uneven tone, texture, and dehydration while supporting skin vitality and barrier health.
Why You'll Love It
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Next-gen brightening delivers results through a bioactive silk peptide clinically proven to reduce the appearance of hyperpigmentation and blemishes while improving visible brightness and radiance, and clinically shown to soothe and calm the appearance of redness.
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Clinically studied vitamin C derivatives and niacinamide work through multiple pathways to refine tone, improve clarity, and support collagen, while astaxanthin and other marine-derived actives help defend against oxidative stress to maintain skin vitality over time.
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A multi-layered system of marine ferments, humectants, and barrier-supporting actives helps skin retain moisture, smooth texture, and maintain suppleness for an even, resilient complexion.
Fragrance-free. Suitable for many skin types, including combination, dry, oily, and sensitive. Explore ingredients.
• Activated Silk™ 8A-ɑ bioactive peptide is clinically proven to reduce the appearance of hyperpigmentation and skin blemishes while improving visible brightness and radiance. This next-gen peptide is clinically shown to soothe and calm the appearance of redness.
• Multiple stabilized vitamin C derivatives and niacinamide even tone, smooth texture, boost collagen, and restore clarity.
• Antioxidant-rich astaxanthin and wild plum extract help defend against oxidative stress and maintain luminosity.
• Advanced biotech ferments and marine actives enhance hydration, elasticity, and barrier strength for long-term resilience.
Gently press 1–2 pumps onto clean, damp face, neck, and décolleté after your mist, toner, or essence in the morning. Follow with moisturizer and/or face oil to seal in hydration. Use daily for best results. Shake bottle gently if you notice separation in the formula.
FOUNDER TIPS:
• Layer Sérum Radiant, our face oil meets serum, over Solstice C Serum for the most indulgent hydrating and nourishing morning ritual.
Activated Silk™ 8A-ɑ bioactive peptide: A sustainably derived peptide that supports late-stage epidermal cell differentiation, helping to replace dull, uneven surface cells with newer, healthier-looking ones. Clinically shown to reduce visible hyperpigmentation and blemishes, calm redness, and promote brighter, more balanced skin.
Vitamin C Derivatives: A multi-benefit complex of stabilized vitamin C derivatives shown to visibly brighten and even tone, reduce the look of dark spots, boost hydration, support collagen, smooth fine lines, and refine texture for a clearer, more luminous complexion.
Niacinamide: A clinically backed form of vitamin B3 that visibly refines texture, evens skin tone, and strengthens the barrier to enhance overall clarity and resilience.
Astaxanthin: A potent next-gen, marine antioxidant that helps neutralize oxidative stress and supports elasticity, clarity, and long-term skin vitality. Its natural pigments give Solstice C its beautiful, faded terracotta color.
Alteromonas Ferment: A marine-derived exopolysaccharide that deeply hydrates and strengthens the skin barrier to restore comfort and smoothness. Originating from French Polynesian Kopara, it supports ceramide and natural moisturizing factor production while rebalancing the skin microbiota for lasting hydration and protection.
Spring Snow (Prunus Domestica, variety Spinosa): A rare coastal plum, sustainably sourced in France, rich in bioflavonoids and amino acids that help reduce sensitivity, defend against pollution, and prevent stress-induced dark spots. Helps calm and comfort stressed skin while reinforcing the barrier for smoother, more hydrated, and even-toned results.
Thermus Thermophillus Ferment: A biotech marine ferment that supports natural ceramide production and renewal for smoother, healthier-looking skin. Helps strengthen and restore the skin barrier for improved hydration and resilience.
Tremella Fuciformis Sporocarp (Snow Mushroom) Extract: A natural humectant that holds up to 500 times its weight in water, helping to plump the skin and improve overall hydration and elasticity.
Sodium PCA and Sodium Hyaluronate: Naturally occurring humectants that draw moisture into the skin and help maintain optimal hydration for a supple, smooth, and balanced complexion.
Saccharide Isomerate: A plant-derived carbohydrate complex that binds to keratin like a magnet, helping skin retain moisture for up to 72 hours. Provides deep, long-lasting hydration that visibly smooths and softens skin.
Full Ingredient List: Aqua (Water), Aloe Barbadensis Leaf Juice, Niacinamide, Glycerin, Jasminum Officinale (Jasmine) Flower Water, Bis-Glyceryl Ascorbate, Hexyl 3-Glyceryl Ascorbate, Saccharide Isomerate, Thermus Thermophillus Ferment, C13-15 Alkane, Pentylene Glycol, Sodium PCA, Coco-Caprylate/Caprate, Propanediol, Polycitronellol, Fibroin Decapeptide-1, Astaxanthin, Alteromonas Ferment Extract, Sodium Hyaluronate, Tremella Fuciformis Sporocarp (Snow Mushroom) Extract, Hydrolyzed Prunus Domestica (European Plum), Betaine, Butylene Glycol, Polyacrylate Crosspolymer-6, Phenoxyethanol, Ethylhexylglycerin