Ultraceuticals Ultra B² Hydrating Serum — Efficacy 4.3/5.0, Safety 4.9/5.0 | DemythSkin
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[ DemythSkin Verdict ]
Ultraceuticals Ultra B² Hydrating Serum
Ultraceuticals

Ultraceuticals Ultra B² Hydrating Serum

SerumHydration
Efficacy
Strong
4.3 / 5.0
Safety
Excellent
4.9 / 5.0
System Verdict
This is a straightforward hydration serum, not a miracle treatment. The efficacy score is driven by a solid humectant stack—glycerin, propanediol, sodium PCA, panthenol, and multiple forms of hyaluronic acid—plus niacinamide high enough in the list to plausibly contribute to barrier support and mild brightening; it loses points because it is still fundamentally a water-based hydrator with no high-potency treatment active, and the formula’s main strength is comfort and moisture retention rather than transformative correction.
Active Ingredients Detected
A Tier: Good BasicsProven Results
NiacinamidePanthenolSodium HyaluronateGlycerinSodium PCATrehaloseSodium Acetylated Hyaluronate
B Tier: Supporting IngredientsPromising Ingredients
Caprylhydroxamic Acid
C Tier: Marketing IdolsHype | Limited or Weak Data
Cucumis Sativus (Cucumber) Fruit Extract
What Each Ingredient Does
Water/Aqua/Eau
solvent base
Propanediol
humectant solvent
Niacinamide
barrier and tone support
Panthenol
humectant soothing
Sodium Hyaluronate
water-binding humectant
Glycerin
classic humectant
1,2-Hexanediol
solvent preservative booster
Sodium PCA
natural moisturizing factor
Cucumis Sativus (Cucumber) Fruit Extract
botanical soothing extract
Trehalose
osmoprotective humectant
Caprylhydroxamic Acid
preservative component
Sodium Acetylated Hyaluronate
long-lasting humectant
Citric Acid
pH adjuster
Potassium Sorbate
preservative
Full Ingredient List (INCI)

Water/Aqua/Eau, Propanediol, Niacinamide, Panthenol, Sodium Hyaluronate, Glycerin, 1,2-Hexanediol, Sodium PCA, Cucumis Sativus (Cucumber) Fruit Extract, Trehalose, Caprylhydroxamic Acid, Sodium Acetylated Hyaluronate, Citric Acid, Potassium Sorbate

Frequently Asked

Is Ultraceuticals Ultra B² Hydrating Serum worth it?

Ultraceuticals Ultra B² Hydrating Serum scores 4.3 out of 5.0 for efficacy (Strong) and 4.9 out of 5.0 for safety (Excellent) on DemythSkin's independent ingredient analysis. This is a straightforward hydration serum, not a miracle treatment. The efficacy score is driven by a solid humectant stack—glycerin, propanediol, sodium PCA, panthenol, and multiple forms of hyaluronic acid—plus niacina

What are the key active ingredients in Ultraceuticals Ultra B² Hydrating Serum?

Ultraceuticals Ultra B² Hydrating Serum contains no gold-standard actives — its formula is built on supporting and base ingredients rather than clinically transformative actives.

Does Ultraceuticals Ultra B² Hydrating Serum contain fragrance or known irritants?

DemythSkin's analysis found no flagged irritants in Ultraceuticals Ultra B² Hydrating Serum. It scores 4.9 out of 5.0 for safety.

How is Ultraceuticals Ultra B² Hydrating Serum scored?

DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.

Analyze on DemythSkin →

Analysis last updated: 2026-09-06. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.