SkinCeuticals Hydrating B5 Review
The Verdict
Hydrating B5 is SkinCeuticals' all-rounder hydration serum: Hyaluronic Acid and Vitamin B5 in an oil-free gel, formulated for every skin type the brand lists, including oily, sensitive and acne-prone skin. It's a supportive, barrier-focused layer rather than a treatment for a specific concern, which makes it a sensible base under actives like vitamin C or retinoids, or after in-clinic procedures. If you specifically want a firmer, more plumping effect, HA Intensifier is the closer fit within the range — see the full comparison. For an occasional intensive top-up, the weekly Hydrating B5 Masque uses the same core actives in a more concentrated format. As with any SkinCeuticals product, confirm current ingredient percentages and allergen data against the live Shopify listing before treating anything specific as fixed.
SkinCeuticals Hydrating B5 | Hyaluronic Acid Serum | 30ml
£88.00
SkinCeuticals Hydrating B5 is a 30ml oil-free hydrating gel serum built around Hyaluronic Acid and Vitamin B5 (Pantothenic Acid), formulated for all skin types — including oily, sensitive and acne-prone skin. It's one of the brand's best-selling hydration products, designed to sit under a moisturiser and SPF rather than replace them, and it's the soothing, barrier-supporting counterpart to HA Intensifier's firmer, plumping-led formula.
What is SkinCeuticals Hydrating B5?
Hydrating B5 is a lightweight, oil-free gel serum that pairs Hyaluronic Acid (as Sodium Hyaluronate) with Vitamin B5 (as Calcium Pantothenate), designed to replenish moisture without adding oil or clogging pores. SkinCeuticals positions it for normal, dry, oily, combination, sensitive, acne-prone and mature skin — making it one of the more universally suited serums in the range, rather than one aimed at a specific skin concern like ageing or discolouration. It's designed to be used alone or layered beneath a daily moisturiser and sunscreen for extra hydration.
Key ingredients
- Sodium Hyaluronate (Hyaluronic Acid) — a humectant that helps draw and hold moisture at the skin's surface and in deeper layers, supporting a plumper, more hydrated look
- Calcium Pantothenate (Vitamin B5) — included to help support the skin's moisture barrier alongside the hyaluronic acid
- Sodium PCA, Urea and Trehalose — constituents of the skin's natural moisturising factor (NMF), included to help support the skin's own moisture-balancing processes
DATA GAP: the Shopify product description doesn't publish an exact percentage for the Hyaluronic Acid or Vitamin B5 content, and we haven't sourced a separate ingredient/INCI or allergen list independently in this session. No percentage or "clinically proven" claim is stated here that isn't in the pulled product copy.
Quick facts
| Key actives | Hyaluronic Acid (Sodium Hyaluronate), Vitamin B5 (Calcium Pantothenate) |
| Size | 30ml |
| Format | Oil-free gel serum |
| Skin types | All skin types, including oily, sensitive, acne-prone and mature skin |
| When to use | Morning and evening, alone or under moisturiser and SPF |
| Patch test | Sensible before first use, as with any new serum, though this is a gentle, oil-free formula |
| Pregnancy/breastfeeding | If you're pregnant or breastfeeding, please contact our team for advice before use |
Who it's for
- Anyone with dehydrated skin, regardless of underlying skin type — including oily skin that's dehydrated rather than genuinely dry
- Acne-prone or blemish-prone skin needing hydration without pore-clogging oils
- Anyone using active treatments such as retinoids, vitamin C or acids who wants a supportive hydration layer
- Post-procedure skin, such as after microneedling, peels or laser treatments, needing gentle replenishment
Who should skip it, or patch test first
If what you're after is a firming or plumping effect specifically, rather than general hydration and barrier support, HA Intensifier is the closer fit — see the comparison below. As with any new product, patch testing is a sensible first step if you have particularly reactive or newly sensitised skin.
How to use it
Hydrating B5 is designed for twice-daily use, applied to cleansed skin either alone or as a layer beneath moisturiser and sunscreen. The gel texture absorbs quickly without leaving residue, so it shouldn't interfere with makeup application or subsequent skincare steps. DATA GAP: we haven't independently re-confirmed the exact application order relative to other actives (for example vitamin C or retinoids) against the live Shopify directions field for this build — the general "cleanse, then serum, then moisturiser/SPF" order is a reasonable default rather than a brand-specific instruction pulled from the listing.
Hydrating B5 vs HA Intensifier — which one do you need?
Both are hyaluronic acid serums from SkinCeuticals, but they lean in different directions. Hydrating B5 pairs Hyaluronic Acid with Vitamin B5 and is positioned as a soothing, barrier-supporting hydrator suitable for all skin types, including acne-prone skin. HA Intensifier adds different secondary actives aimed more at plumping and firming. If you're deciding between the two, our full Hydrating B5 vs HA Intensifier comparison walks through the difference in more depth. For the wider hydration and barrier-support line-up, see our SkinCeuticals brand overview.
Also worth knowing: Phyto Corrective and the Hydrating B5 Masque
If redness or blemish-prone sensitivity is more of a concern than general dehydration, Phyto Corrective is a related hydrating gel serum formulated specifically for blemish- or redness-prone skin — worth a look alongside Hydrating B5 rather than instead of it. For an occasional intensive top-up rather than a daily step, SkinCeuticals also sells a weekly Hydrating B5 Masque, a concentrated gel mask built around the same Hyaluronic Acid and Vitamin B5 pairing, for a short, more intensive treatment on top of your regular routine.
Safety, sensitivity and pregnancy
Hydrating B5 is an oil-free formula designed to be gentle enough for sensitive and acne-prone skin, though as with any new product, introducing it gradually and patch testing first is a sensible precaution if your skin is particularly reactive. If you're pregnant or breastfeeding, please contact our team for advice before use.