Topic
Formulation & Ingredient Deep-Dives
articles.
Every Formulation & Ingredient Deep-Dives article in the journal — sourced, science-led, zero hype.
- Formulation The Best Invisible Sunscreens for Summer 2026 (No White Cast, No Grease) Three top-scoring, no-white-cast formulas you'll actually want to reapply — ranked by our transparent composite score, not vibes. Read it →
- Formulation Why SPF Expires (and What Happens If You Use Old Sunscreen) Degraded filters mean degraded protection. Read it →
- Formulation After-Sun Care: What Actually Helps a Sunburn Heal Evidence-based relief, not just aloe vibes. Read it →
- Formulation The Role of Emulsifiers in Why Sunscreen 'Runs' Into Your Eyes The formulation culprit behind sunscreen stinging your eyes. Read it →
- Formulation Water-Based vs Alcohol-Based Sunscreens The base of your sunscreen decides its feel, finish, and who it suits. Read it →
- Formulation How Tinted Sunscreens Protect Against Blue Light The iron-oxide science behind the color. Read it →
- Formulation Why Reef-Friendly Formulas Are Getting Better Mineral innovation is closing the elegance gap. Read it →
- Formulation How Sunscreen Is Tested in a Lab (the SPF Number's Origin Story) Where that '50' on your bottle actually comes from. Read it →
- Formulation The Difference Between Nano and Non-Nano Zinc What the particle-size debate actually means for your skin. Read it →
- Formulation How 'SPF Boosters' Actually Work in a Formula The hidden ingredients that raise a sunscreen's number. Read it →
- Formulation Niacinamide + SPF: A Power Pairing for Spring Why this combo supports your barrier under UV stress. Read it →
- Formulation The Science of Why Some Sunscreens Feel Greasy Oil phase, filters, and finish: what really drives the slip. Read it →
- Formulation What Makes a Sunscreen Water-Resistant (and Why None Are Waterproof) The FDA banned the word 'waterproof,' and the science explains why. Read it →
- Formulation Antioxidants in Sunscreen: Hype or Help? Vitamin C, vitamin E, and the Pinnell research that kicked off the whole idea. Read it →
- Formulation Why Mineral Sunscreens Leave a White Cast (Real Science) It's particle size and visible light doing it, not your technique. Read it →
- Formulation What 'Photostable' Actually Means on a Sunscreen Label Not all filters survive the sun they're supposed to block. Read it →
- Formulation Why Some Sunscreens Pill and Others Glide The formulation science behind that annoying eraser-crumb effect. Read it →
- Formulation Does Sunscreen Cause Vitamin D Deficiency? A 2025 Trial Adds Nuance to the Myth The 'sunscreen blocks vitamin D' claim is half-wrong and half-right, and a 2025 randomized trial shows exactly where the truth sits. Read it →
- Formulation Mineral Sunscreens Recalled for 'Splitting': The 2025 Australian Separation Recalls Several zinc sunscreens were pulled in Australia in late 2025 for physically separating in the bottle, here's why that compromises protection. Read it →
- Formulation 2025 Trial: Tinted Sunscreen Beat Untinted for Evening Out Melasma If you have melasma, the tint isn't just cosmetic — a 2025 trial shows iron-oxide color doing real work against the visible light that plain SPF lets through. Read it →
- Formulation A 2025 Study Scores White Cast: How Much Zinc Before Mineral SPF Looks Ashy A 2025 PLoS One study built the first standardized white-cast scale, giving you a concrete zinc-oxide percentage rule for picking a mineral SPF that won't leave you ashy. Read it →
- Formulation Why Tinted Sunscreen Is the Hidden Upgrade for Hyperpigmentation Tinted sunscreens do something clear formulas can't, and an NPR report explains why that matters most for melasma and hyperpigmentation-prone skin. Read it →
- Formulation Are Nano Zinc & Titanium Dioxide Safe? What Penetration Studies Show The fear that nanoparticles slip into your bloodstream is widespread - here's what the actual penetration studies, including a major regulatory review, found. Read it →
- Formulation Beyond UV: Why 2025 Research Says Sunscreens Should Fight Blue Light and Infrared Sun protection is expanding past UVA and UVB - a 2025 scientific review explains the blue-light and infrared gap your 'broad spectrum' label doesn't cover. Read it →