Beta Glucan Serum: How to Choose One for Calm, Hydrated, Resilient Skin
Beta glucan serum hydrates and calms a stressed skin barrier. Learn what the studies show, how to read the label, how it compares with hyaluronic acid, and more.
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Evidence-Based Skincare Articles
Written by the North Biomedical® team to provide thoroughly researched content on skincare science, anti-aging breakthroughs, and the latest advances in dermatological technology.
Explore by topic
Six guided paths through the library
Loose, Crepey & Sagging Skin Understand why skin loses firmness and compare evidence-based options for crepey, loose, sagging, and wrinkled skin by body area. Open guide → Retinoids & Retinol A complete guide to retinol, retinal, tretinoin, adapalene, retinyl esters, Nanoretinol®, combinations, side effects, and routines. Open guide → Dark Spots & Uneven Tone Identify common causes of dark spots and uneven tone, then compare sunscreen, brightening ingredients, retinoids, and procedures by concern. Open guide → Mature Skin Routines & Common Concerns Build a practical mature-skin routine and explore product guides, skin types, barrier care, texture, pores, eye concerns, and age-specific needs. Open guide → Skincare Ingredients A–Z Browse evidence-based skincare ingredient guides covering antioxidants, acids, hydrators, oils, peptides, vitamins, barrier support, and more. Open guide → Procedures & At-Home Options Compare injectables, lasers, peels, energy devices, microneedling, tightening procedures, recovery, limitations, and at-home alternatives. Open guide →
Kojic Acid Soap: Does It Fade Dark Spots, and Is It Safe to Use?
Kojic acid soap is a popular dark-spot fix, but a bar rinses off in seconds. Learn what the evidence shows, the safety red flags, and a routine that works better.
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Salicylic Acid Cleanser: What a BHA Face Wash Can Do for Pores, Oil and Aging Skin
A salicylic acid cleanser can loosen blackheads and cut shine, but it rinses off fast. Learn how to choose one, who it suits, and how to pair it with retinol.
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Alpha Arbutin Serum: What the Evidence Supports, and How to Choose One
An alpha arbutin serum fades dark spots gently. Learn the safe, studied strength, alpha vs beta arbutin, how long it takes, and how to pair it with retinol.
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Ammonium Lactate Lotion: What It Does for Rough, Dry and Crepey Body Skin
Ammonium lactate lotion softens rough, dry body skin and can thicken thin skin. See what 12% does, how it compares with urea, and how to pair it with retinol.
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Glycolic Acid Cleanser: What a Rinse-Off Acid Can and Cannot Do
A glycolic acid cleanser can smooth rough, dull skin, but it rinses off fast. Learn what to look for, who it suits, sun-safety rules and how to pair it with retinol.
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Cica Cream: What Centella Really Does for Stressed Skin, and How to Choose One
Cica cream uses centella asiatica to calm and hydrate stressed skin. What human studies show, how to read the label, and how to pair it with your retinol.
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Hydrating Toner: How a Watery Step Actually Holds Moisture in Your Skin
A hydrating toner adds water-binding humectants after cleansing. Learn which ingredients work, why sealing matters, what to avoid and how to layer it.
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Mandelic Acid Serum: What the Gentle AHA Can Do, and How to Choose One
A mandelic acid serum gives gentle AHA exfoliation for sensitive, acne-prone or pigment-prone skin. What studies show, which strength to pick, how to use it.
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Ceramide Serum: What It Does, What the Research Shows, and How to Choose One
A ceramide serum can strengthen a weak skin barrier. Learn why lipid ratios matter, how serums differ from creams, and how to use one with retinol.
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