

When skin looks dull, the first instinct is often to add another serum, while the cause is usually a layer of dead cells, dehydration or a run of short nights. Once you know which one is behind it, a few small, steady changes bring the glow back.
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What each one does, how it works and how to use it.

Enzymes dissolve the bonds holding dead cells to your skin and then stop, which makes them the gentlest exfoliant there is. Here is how they work and who they suit.
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Lactic acid exfoliates and hydrates at the same time, which makes it the AHA for dry and easily irritated skin. Here is how it compares to glycolic and how to use it.
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Glycolic acid is the smallest exfoliating acid, so it reaches deepest and does the most for texture, tone and fine lines. Here is how to use it without overdoing it.
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Mandelic acid exfoliates, slows pigment production and reduces acne bacteria all at once, which makes it the acid for post-breakout marks and deeper skin tones.
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Vitamin C intercepts the daily damage from sun and pollution, fades dark patches and is required for your skin to build collagen. Here is how it works and which form suits your skin.
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Niacinamide calms redness, strengthens the barrier, evens pigment and regulates oil, all without irritation. Here is why four to five percent is the number and how it fits with everything else.
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Glutathione is the antioxidant your own cells make. What it does about everyday damage and uneven tone, and how to choose a product that still works when you open it.
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Hyaluronic acid holds a thousand times its weight in water and plumps skin the same day. Here is how to apply it so it works, and why it sometimes backfires.
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A carboxy gel mask uses carbon dioxide to make your own blood deliver oxygen to the skin, so you get visible plumpness and glow within the hour. Here is how it works and when to use it.
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Brightens, repairs, and rejuvenates with antioxidant and retinoid power for stronger, clearer skin.

Targets stubborn congestion and fine texture with exfoliants to smooth and renew the skinβs surface.

Firms, brightens, hydrates deeply, smooths tired eyes.

Dual-action gel cleanser with 2% salicylic acid, glycolic and malic acids, and prebiotics that unclogs pores, gently exfoliates, and helps clear acne for oily and acne-prone skin.

Two-step at-home peel that resurfaces, hydrates, and brightens for balanced, glowing skin.

Cleanses gently, hydrates, supports barrier and balance.

Lightweight but nourishing body lotion for dryness and rough texture.

Multi-layered acne and anti-aging serum with Beta-ret Technology, retinaldehyde, retinol, acids, and peptides.

Smooths and hydrates rough, crepey skin on the body with retinoid and AHA technology.

Retinoid and salicylic serum for oily, blemish-prone skin that refines clarity and pores.

Retinoid and AHA blend that reduces wrinkles and smooths skin with minimal irritation.

Antioxidant-rich serum that defends against oxidative stress and improves tone and texture.

Broad antioxidant protection to brighten skin, calm redness, and shield against environmental damage.

Restores volume, smooths skin, and boosts hydration.

Soothes reactive skin while helping balance oil, reduce congestion, and support the skin barrier.

Reduces acne, congestion, excess oil, texture, redness and post-acne marks.

A triple-acid masque with glycolic, lactic, and salicylic acids plus jojoba beads that resurfaces skin.

Acne-safe peptide and antioxidant serum that supports firmness, softens fine lines and defends skin.

Clears dead skin buildup and congestion, ideal for non-inflamed acne or AHA/BHA-sensitive skin.

Oil-free vitamin A moisturizer for healthier-looking skin, improved texture, and balance.

Vitamin A moisturizer system that gradually increases levels to support healthier, stronger-looking skin.

A lightweight, non-comedogenic oil packed with botanical antioxidants to hydrate without residue or clogging pores.

An exfoliating glycolic acid serum that smooths texture and supports brighter skin.

For dryness, sensitivity, or a disrupted barrier, this SkinBetter duo restores comfort and hydration.
Blackheads and Whiteheads: What Clogs a Pore and How to Clear It
Blackheads and whiteheads are clogged pores that have not turned red or sore. Here is what forms the plug, why many nose blackheads are something else, and how to clear them.
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Dark Circles: What Causes Them and What Skincare Can Change
Dark circles come from extra pigment, blood vessels showing through thin skin, or shadow from a hollow under the eye. Here is how to tell which you have and what skincare can change.
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Glycation: How Sugar Stiffens Skin and What Can Slow It
Glycation is sugar bonding to the collagen in your skin, leaving it stiffer and more yellow over the years. Here is how it happens, what speeds it up and what can slow it down.
Read moreabout Glycation: How Sugar Stiffens Skin and What Can Slow It