Dehydrated skin lacks water—not oil—which can leave the complexion feeling tight, dull, and fatigued. Hydrating serums deliver moisture deep into the skin using humectants like hyaluronic acid, glycerin, and vitamin B5, helping to restore suppleness and comfort. This edit highlights serums formulated to boost hydration and support the skin’s moisture balance, selected for texture, ingredient profile, and broad compatibility with different skin types.
Context of Use
Hydrating serums are typically applied after cleansing and toner (if used), but before moisturizers. They are lightweight and designed to penetrate deeply, bringing water into the skin and helping subsequent products lock in hydration. In a daily routine, use them in both your morning and evening steps for best results.
Featured Products
The Ordinary Hyaluronic Acid 2% + B5

Hyaluronic Acid 2% + B5
A water‑based serum that combines hyaluronic acid with vitamin B5 to attract and retain moisture at multiple layers of the skin, creating a plumped and refreshed feel. Ideal for anyone seeking a highly effective, gentle hydrating boost that works well under moisturizers.
La Roche‑Posay Hyalu B5 Hyaluronic Acid Serum

B5 Hyaluronic Acid Serum
This dermatologist‑trusted formula pairs multiple forms of hyaluronic acid with vitamin B5 to reach deeper layers of the skin for long‑lasting hydration. Its lightweight gel texture absorbs quickly and leaves skin feeling supple without heaviness.
Drunk Elephant B‑Hydra Intensive Hydration Serum

Hydra Intensive Hydration Serum
A cult‑favorite lightweight serum enriched with pro‑vitamin B5 and pineapple ceramide to help balance the skin’s moisture levels. Its silky texture makes it easy to layer under heavier creams or oils for extra hydration.
Glow Recipe Avocado Ceramide Recovery Serum

Avocado Ceramide Recovery Serum
Rich in ceramides and vitamin B3, this serum combines humectants with barrier‑supporting lipids to replenish moisture and soothe dryness. Its creamy, nourishing texture makes it especially suitable for dry or sensitive dehydrated skin.
Filorga Hydra‑Hyal Serum

Hydra‑Hyal Serum
A deeply hydrating serum formulated with multi‑weight hyaluronic acid to deliver moisture at various skin depths. Its smooth, silky texture leaves skin feeling bouncy and refreshed and works well for those looking to address both dehydration and dullness.
What to Look for in a Hydrating Serum
- Hyaluronic Acid: attracts and holds water in the skin
- Vitamin B5 (Panthenol): boosts moisture retention and supports barrier repair
- Glycerin: enhances hydration and skin smoothness
- Ceramides: help seal moisture and strengthen the barrier
- Lightweight, fast‑absorbing formulas for daily use
Next Step in Your Routine
Once hydration has been boosted with a serum, follow with a moisturizer to help seal in moisture and support the skin barrier. For a deeper understanding of product layering and routine order, explore our Skincare Routines guide.
If barrier support is your main concern, you may also want to read our edit on Best Moisturizers for a Strong Skin Barrier.
Disclaimer This list reflects an editorial selection based on key hydrating ingredients and general skin compatibility. Individual skin needs may vary.
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