GlowScience HQ

Issue No. 14 — Spring 2026

The skincare reviews that read the label before they read the marketing.

Ingredient-first, bench-tested, and double-checked by board-certified dermatologists — we cut through the actives hype so you can spend on what actually performs on skin.

Browse Reviews How We Test

Independent & reader-supported. We buy every product we review.

Editorial flat-lay of skincare serums and droppers on a linen surface — Vol. 14 — Serums, Sunscreens & Bond-BuildersPlate 01

By the Numbers

Products tested in-lab: 1,284
Dermatologists consulted: 37
Ingredients tracked: 612
Retest cadence: Quarterly

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Olaplex No. 5 Bond Maintenance Conditioner Review

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Philips Sonicare ProtectiveClean 4100 Review

The Sonicare ProtectiveClean 4100 is the entry-Sonicare-tier sonic toothbrush. We tested it for 8 weeks against an Oral-B Pro 1000 and the bare-manual control.

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Supergoop! Unseen Sunscreen SPF 50 Review

Supergoop! Unseen Sunscreen is the cult clear-gel primer-finish SPF 50. We tested it for 8 weeks of daily wear under makeup against thicker traditional sunscreens.

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The Ordinary Multi-Peptide + Hyaluronic Acid Serum Review

The Ordinary Multi-Peptide + Hyaluronic Acid is the brand's anti-aging peptide serum for crow's feet. We tested it for 8 weeks against pure HA alternatives.

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PRITECH Facial Cleansing Brush Review

PRITECH's silicone facial cleansing brush is the $10 entry-tier alternative to Foreo Luna. We tested it for 8 weeks of daily use against bare-hands cleansing.

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MEDITHERAPY Retinal Skin Booster Serum Review

MEDITHERAPY Retinal Skin Booster uses retinaldehyde — the more potent retinoid form between retinol and tretinoin. We tested it for 8 weeks.

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LANEIGE Water Sleeping Mask Review

LANEIGE Water Sleeping Mask is the cult K-beauty overnight hydrator. We tested it for 6 weeks of nightly use against face moisturizer alternatives.

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ISNTREE Hyaluronic Acid Daily Sun Gel SPF 30 Review

ISNTREE Hyaluronic Acid Daily Sun Gel combines SPF 30 with hyaluronic-acid hydration. We tested the K-beauty sunscreen for 8 weeks of daily use.

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CeraVe Intensive Moisturizing Cream for Body Review

CeraVe Intensive Moisturizing Cream is the dermatologist-tier body cream for severe dryness. We tested it for 8 weeks of full-body daily use through winter.

Apr 27, 20263 min readskincare

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COSRX AHA/BHA Treatment Toner Review

COSRX AHA/BHA Treatment Toner is the K-beauty entry-tier exfoliating toner. We tested it for 8 weeks on combination skin against The Ordinary's strong peel.

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Timeless Vitamin C + E + Ferulic Acid Serum Review

Timeless Skin Care's 20% Vitamin C + E + Ferulic is the most popular SkinCeuticals C E Ferulic dupe. We tested it for 8 weeks against the original.

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The Ordinary Retinol 0.2% in Squalane Review

The Ordinary Retinol 0.2% in Squalane is the entry tier of their retinol ladder. We tested it for 8 weeks as a beginner's introduction to retinoids.

Apr 27, 20263 min readskincare

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