WhySkin
The Journal
Do Viral Beauty Hacks Actually Work? Checking the Chemistry
We break down the real chemistry behind viral hair hacks like the ketchup rinse, mayonnaise "deep conditioner," and baking soda clarifying paste — and explain why the same hack can work very differently depending on your hair's porosity.
Six Signs Your Anti-Aging Routine Is Damaging Your Face
Tightness, stinging, visible flaking, new sensitivity, a dull look despite exfoliating more, and unexpected breakouts are all signs of over-exfoliation, usually from stacking too many actives at once. Here is how to spot it and recover.
How Professional Makeup Artists Choose a Foundation Shade and Formula
Professional makeup artists don't rely on a favorite product — they follow a repeatable process for matching shade and choosing formula. Here's what that process actually looks like.
Caring for Chapped Lips When Balm Alone Isn't Enough
When ordinary lip balm doesn't seem to be helping, the fix usually isn't a stronger product — it's a different layering approach, and cutting out the "medicated" ingredients that quietly make things worse.
What Sunscreen Actually Protects Against, and Why Prevention Is the Whole Game
Sunscreen's entire job is stopping future UV exposure from adding up. Here's exactly what it blocks, what it doesn't, and why prevention is the strategy.
Best Skin Care Routine for Dry, Mature Skin During Cold Weather
Cold, dry air hits dry, mature skin hardest. Here is how to rethink product texture and layering order for winter -- from cleanser choice to sealing humectants -- rather than just switching to a heavier cream.
Are Anti-Aging Products Right for Teens? What to Start With Instead
Anti-aging products are showing up in more teen skincare routines. Here's why sunscreen and a gentle basic routine matter far more at this age than retinoids or acids.
Remove Dead Skin Cells with a Fresh Sugar Scrub
A simple two-ingredient sugar scrub can smooth rough patches on your body — here's the ratio that works, how to patch test it, and why it belongs on your body and not your face.
Hydration vs. Moisture: What Your Skin Actually Needs
Hydration and moisture are not the same thing: one is about water content, the other about oil. Here is the difference, how humectants and occlusives each work, and how to tell which one your skin needs.
5 Ways to Keep Using Your Favorite Moisturizer When You Travel
Decanting your moisturizer into a travel jar doesn't reset its shelf-life clock. Here are five practical ways to travel with your skincare and still track its real expiry.
How Often Should You Exfoliate? A Guide by Skin Type
Exfoliation frequency isn't one-size-fits-all — here's how to pick a schedule based on your skin type and whether you're using a physical or chemical exfoliant.
Why Moisturizer Matters, Even for Oily Skin
Skipping moisturizer because your skin is oily can backfire. Here's the barrier-function case for moisturizing regardless of skin type, and how to pick the right texture.