The Glow Market Skin Score™ — Evaluation
Acne-Friendly: Hero Match 12% non-nano Zinc Oxide is non-comedogenic and soothing, with no pore-clogging oils, fragrance, or heavy emollients in the formula.
Anti-Aging: Moderate Match Daily mineral SPF is the single most effective anti-aging step, preventing UV-driven collagen breakdown — though the formula doesn't include active anti-aging ingredients beyond that prevention.
Hydration: Moderate Match Niacinamide, propanediol, and allantoin offer light hydration support, but the formula is designed to feel weightless rather than deeply moisturizing.
Brightening: Strong Match Niacinamide helps even tone over time, and consistent sun protection prevents new pigmentation and dullness — the foundation of any brightening routine.
Sensitive Skin: Hero Match Mineral-only sun filter paired with allantoin and bisabolol (two of the most calming ingredients in skincare), and free of chemical filters, fragrance, and essential oils.
Skin Barrier Support: Strong Match Niacinamide strengthens the barrier, allantoin and bisabolol calm and protect, and silicones create a smooth occlusive layer that shields skin from environmental stress.
Who It's Best For: Sensitive, reactive, or breakout-prone skin looking for a lightweight, non-irritating daily mineral SPF that calms while it protects.
Our Notes: this is a high-quality sunscreen — The silicone base is what gives this mineral sunscreen an elegant, non-chalky feel. Zinc at 12% is in the sweet spot for meaningful broad-spectrum protection without going so high that it gets pasty. A little goes a long way. Make sure to shake well before use.
SunDay Mineral Serum SPF 50+ is a high-protection mineral face sunscreen from SONNI that delivers broad-spectrum UV protection using 12% non-nano zinc oxide — blocking 98% of UV rays. The fluid serum texture has a soft-matte, grippy finish that holds up through heat, sweat, and 80 minutes of water resistance, while niacinamide, allantoin, and bisabolol strengthen the skin barrier and calm sensitivity. Reef-safe, fragrance-free, and dermatologist-tested.
What it is: A high-performance, water-resistant mineral SPF 50+ face serum that wears like skincare and layers cleanly under makeup. 50 mL / 1.7 fl oz.
Who it's for: Anyone needing higher-protection daily SPF for active days, prolonged sun exposure, outdoor workouts, travel, peak-UV conditions, and sensitive or redness-prone skin. Designed to layer under makeup as a primer or as the final step in a skincare routine.
Key benefits
- Broad-spectrum SPF 50+ mineral protection (12% non-nano zinc oxide)
- Blocks 98% of UV rays — UVA and UVB
- 80-minute water resistance for swim, sweat, and outdoor wear
- Niacinamide strengthens the skin barrier, reduces visible redness, and improves tone over time
- Allantoin and bisabolol calm sensitivity and support post-sun recovery
- Urban Shield technology helps defend against pollution-induced free radicals
- Soft-matte, non-greasy finish that layers cleanly under makeup
- Minimal to no white cast, even on deeper skin tones (powered by SONNI's smarter zinc technology)
Active ingredient: Zinc Oxide 12% Key supporting ingredients: Niacinamide, Allantoin, Bisabolol
What's not in it: Chemical UV filters, synthetic fragrance, parabens, sulfates, common allergens
Certifications & claims: Vegan · Cruelty-free · Dermatologist-tested · Non-nano · Reef-safe · Fragrance-free · Paraben-free · Sulfate-free · FDA-approved formula · 80-minute water resistance
How to use: Shake well before use. Apply generously to clean, dry skin 15 minutes before sun exposure. Reapply every two hours, or after 80 minutes of swimming or sweating. Rub in thoroughly — mineral SPF takes a moment to fully absorb. Use as the last step in your skincare routine or as a priming layer under makeup.
FAQ Does it leave a white cast? No. SONNI's smarter zinc technology delivers high-protection mineral SPF without the chalky finish typical of mineral sunscreens — it works across skin tones, including deep skin tones. Is it water-resistant? Yes, up to 80 minutes. Reapply after swimming or sweating. Can I wear it under makeup? Yes — the soft-matte finish doubles as a primer. Is it reef-safe? Yes. Non-nano zinc oxide with no oxybenzone or octinoxate. Is it safe for sensitive skin? Yes — fragrance-free, dermatologist-tested, and formulated with calming niacinamide, allantoin, and bisabolol. What's the difference between this and SunDay Invisible Defense SPF 40+? This serum is higher-protection (SPF 50+ with 12% zinc) and water-resistant — designed for peak sun and longer wear. Invisible Defense SPF 40+ is a lighter daily moisturizer-SPF for everyday commute and indoor-outdoor days.
Full ingredients: Zinc Oxide 12%, Allantoin, Bisabolol, Butyloctyl Salicylate, C12-15 Alkyl Benzoate, Caprylyl Glycol, Caprylyl Methicone, Dimethicone, Dimethiconol/Propylsilsesquioxane/Silicate Crosspolymer, Ethylhexylglycerin, Hexylene Glycol, Isododecane, Lauryl PEG-10 Tris(Trimethylsiloxy)silylethyl Dimethicone, Lauryl PEG-8 Dimethicone, Niacinamide, Octyldodecyl Neopentanoate, PEG-10, Phenoxyethanol, Polymethylsilsesquioxane, Propanediol, Sodium Chloride, Sodium Hydroxide, Tetrasodium Glutamate Diacetate, Trilaureth-4 Phosphate, Water.