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OUTSIDE BEAUTY

The Science of Beautiful Hair, Skin & Nails

Master the science of skincare actives, build an effective hair care routine, and strengthen your nails with proven treatments and techniques.

Skin Care

Skin Care

From powerful actives like retinoids and vitamin C to complete AM/PM routines - everything you need for radiant, healthy skin.

Retinoids guide

The Complete Retinoid Guide: From Retinol to Tretinoin

Retinoids are the gold standard of anti-aging. Learn about different strengths, how to introduce them safely, and managing side effects.

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Vitamin C serum

Vitamin C Serums: Stability, Percentages & Application

Not all vitamin C is created equal. Understand L-ascorbic acid stability, optimal percentages, and how to layer for maximum brightening.

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Sunscreen guide

Sunscreen: The #1 Anti-Aging Product You Need Daily

90% of visible aging comes from sun exposure. Master SPF science, chemical vs mineral filters, and proper reapplication techniques.

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Niacinamide

Niacinamide: The Multi-Tasking Skincare Hero

Pore-minimizing, barrier-strengthening, and brightening - discover why niacinamide works for almost every skin type and concern.

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Skincare routine

Building Your Perfect AM & PM Skincare Routine

Order matters in skincare. Learn the correct sequence for layering products, what to use morning vs night, and how to avoid conflicts.

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Hair Care

Hair Care

Healthy hair starts at the scalp. Learn the science of hair growth, damage repair, and building a routine for your specific hair type.

Scalp health

Scalp Health: The Foundation of Beautiful Hair

Your scalp is skin too. Learn how to balance oil production, address dandruff, and create the optimal environment for hair growth.

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Hair damage repair

Hair Damage Repair: Protein, Moisture & Bond Treatments

Heat styling, color, and environmental damage take their toll. Understand the science of hair repair and which treatments actually work.

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Hair growth

Maximizing Hair Growth: Topical Treatments That Work

From minoxidil to rosemary oil, peptides to caffeine - examine the evidence for popular hair growth treatments and how to use them.

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Hair care by type

Hair Care by Type: Fine, Thick, Curly & Coily Guides

Different hair textures need different approaches. Find your specific hair type and build a customized care routine that works.

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Nail Care

Nail Care

Strong, healthy nails are both beautiful and a sign of good health. Learn proper care techniques and strengthening treatments.

Nail strengthening

Nail Strengthening: Treatments for Brittle, Weak Nails

From keratin treatments to nail hardeners, discover which strengthening products actually work and how to use them correctly.

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Cuticle care

Cuticle & Nail Bed Care: The Complete Guide

Healthy cuticles protect nail growth. Learn proper cuticle care techniques, the best oils, and when to push vs leave them alone.

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Nail health signs

What Your Nails Reveal: Signs of Deficiency & Health

Ridges, discoloration, and brittleness can signal nutritional deficiencies or health issues. Learn to read what your nails are telling you.

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Explore Inside Beauty

Great topical care works best with internal health. Discover how nutrition, gut health, and supplements enhance your results.

Inside Beauty Guide