The Ordinary's Hyaluronic Acid 2% + B5 Hydrating Serum is a straightforward choice for anyone looking to boost their skin's surface hydration. It uses a blend of different hyaluronic acid weights to draw moisture into the skin, while panthenol (Vitamin B5) and ceramides offer comfort and support to the skin barrier. This serum is lightweight and absorbs quickly, making it suitable for most skin types, especially those who find their skin feels tight or looks dull.
Sephora price
$9.90
Price matters most when you are trying to learn whether this lane belongs in your routine without turning the test into a luxury gamble.
Sephora reviews
4.2 / 5
About 3,900 reviews on the current Sephora source, so there is real volume behind the reputation.
Shoppers keep mentioning
These are the shopper themes that keep showing up around this listing and shape why people open it in the first place.
Glass take
4.2 / 5 overall fit
This is a solid, no-frills hydrating serum. It does what it says on the tin: delivers surface hydration with a blend of HA forms, panthenol, and ceramides. It’s a good option for most skin types looking for an extra layer of moisture, but it won't replace a richer moisturizer or fix deep dehydration on its own.
Sephora snapshot refreshed April 23, 2026
Price, rating, review count, and source status come from Sephora. Glass adds the routine fit, overlap risk, and what to compare next.
View SephoraWhat Sephora says
A lightweight serum built around hyaluronic acid, vitamin B5, and ceramide support for surface hydration.
Apply a few drops before moisturizer.
Seal with moisturizer instead of expecting hyaluronic acid to do the whole hydration job alone.
Use on slightly damp skin if your routine tolerates it.
What Glass adds
Glass sees this as a reliable, budget-friendly hydrating serum. It’s a good workhorse for adding a layer of moisture without introducing complex actives or potential irritation. It’s best used as a step to enhance your existing routine, not as a standalone fix for major dehydration issues. Think of it as a helpful addition to keep skin feeling comfortable and looking plump, especially when layered under a good moisturizer.
Routine integration
Shoppers often mention how easily this serum fits into their existing routines, appreciating that it doesn't clash with other active ingredients they might be using.
Hydration needs
The consensus is that it's great for a general hydration boost and plumping, but those with very dry skin often note it needs to be followed by a richer moisturizer.
Value proposition
The affordability is frequently highlighted as a major plus, making it an accessible option for consistent use.
Best for
Skip if
Why it keeps selling
In a world of complex actives, sometimes you just need a reliable hydrator. This serum from The Ordinary delivers exactly that. It’s built on a foundation of multiple hyaluronic acid forms, designed to attract and hold moisture on the skin's surface. The addition of panthenol and ceramides elevates it beyond a basic humectant, offering a touch of comfort and barrier support that makes skin feel softer and look smoother.
Its appeal lies in its simplicity and effectiveness. It’s easy to understand, easy to use, and easy on the wallet. This makes it a popular choice for those who want to add a dependable layer of hydration without introducing new potential irritants or disrupting their existing treatment steps.
Where people get burned
The main pitfall with this serum is setting expectations too high. While it’s excellent for surface hydration, it’s not a miracle cure for deep dehydration or a severely compromised skin barrier. If your skin feels perpetually dry, flaky, or tight, this serum alone might not be enough. It needs to be part of a routine that includes occlusive moisturizers to truly lock in hydration.
Furthermore, if your routine is already packed with multiple serums targeting specific concerns like acne, fine lines, or dark spots, adding another hydrating serum might lead to unnecessary product overlap. It’s important to assess if your skin truly needs this extra layer of hydration or if the problem lies elsewhere in your routine.
How I would use it
I’d reach for this after cleansing, especially if my skin felt a bit tight from washing or if the air was dry. I’d apply a few drops to slightly damp skin – this helps the hyaluronic acid draw in even more moisture. Then, I’d immediately follow up with my regular moisturizer. The key is to seal in that hydration.
I wouldn't use this on the same night as strong retinoids or exfoliating acids unless my skin was feeling particularly thirsty and I was actively trying to buffer those actives. It’s best kept as a straightforward hydration step, either in the morning before SPF or at night before a richer cream.
Why it works
The useful question is not whether this product is good in a vacuum. It is whether it makes your routine easier to run or just adds one more bottle with a familiar ingredient on it.
What it actually does well
Where it starts to feel redundant
Routine fit
Morning fit
Apply after cleansing and before your moisturizer and SPF. It helps keep skin comfortable and hydrated throughout the day, especially if you experience midday tightness.
Night fit
Use after cleansing and before your nighttime moisturizer. It adds an extra layer of hydration that can be beneficial overnight, particularly when sealed with a richer cream.
Pairing rule
Pairs well with most moisturizers. Avoid using it immediately after strong exfoliants or retinoids if your skin is sensitive, or ensure you follow with a good moisturizer to buffer.
Glass rating
This is a solid, no-frills hydrating serum. It does what it says on the tin: delivers surface hydration with a blend of HA forms, panthenol, and ceramides. It’s a good option for most skin types looking for an extra layer of moisture, but it won't replace a richer moisturizer or fix deep dehydration on its own.
Hydration boost
4.5 / 5
The multi-weight hyaluronic acid complex provides immediate surface hydration and a plumping effect that makes skin feel more supple.
Barrier support
4.0 / 5
The inclusion of ceramides and panthenol adds a welcome barrier-supportive element, making it more than just a simple humectant.
Routine fit
4.2 / 5
It slots easily into most routines, typically after cleansing and before heavier creams. It doesn't interfere with most actives.
Value for money
4.6 / 5
For the price, it offers a good blend of hydrating and barrier-supporting ingredients, making it a budget-friendly choice.
Deep dehydration fix
3.5 / 5
While good for surface hydration, it may not be enough for those experiencing significant dehydration or dryness without additional occlusive layers.
Full ingredient breakdown
Base solvent
Badness
0.2 / 10
The primary component of the serum, providing a lightweight base for the active ingredients.
Usually helps with
Creating a fluid texture that spreads easily.
Watch for
A neutral ingredient, essential for any water-based serum.
Humectant
Badness
1.5 / 10
A salt form of hyaluronic acid that attracts and holds water in the skin, providing surface hydration.
Usually helps with
Immediate plumping and surface moisture.
Watch for
Can feel slightly tacky on its own, but works well in a formula.
Humectant
Badness
1.8 / 10
A larger molecule form of hyaluronic acid that creates a hydrating film on the skin's surface, reducing water loss.
Usually helps with
Longer-lasting surface hydration and a smoother feel.
Watch for
Less likely to penetrate deeply, focuses on surface benefits.
Humectant
Badness
1.6 / 10
A smaller molecule form of hyaluronic acid that can penetrate the upper layers of the skin for deeper hydration.
Usually helps with
More thorough hydration compared to larger HA molecules.
Watch for
Works synergistically with other HA forms for comprehensive hydration.
Humectant and solvent
Badness
1.2 / 10
A multi-functional ingredient that helps with moisture retention and improves the texture and spreadability of the serum.
Usually helps with
Enhancing hydration and formula feel.
Watch for
Generally well-tolerated, contributes to a pleasant sensory experience.
Humectant and solvent
Badness
1.3 / 10
Another humectant that aids in delivering active ingredients and provides a smooth, non-sticky finish.
Usually helps with
Improving texture and providing a light hydration boost.
Watch for
A common and effective solvent and humectant in skincare.
Humectant
Badness
0.5 / 10
A classic humectant that draws water into the skin, helping to keep it hydrated and soft.
Usually helps with
Fundamental hydration and skin barrier support.
Watch for
A staple in most hydrating formulas for good reason.
Soothing agent and humectant
Badness
1.0 / 10
Also known as Vitamin B5, it attracts and retains moisture, soothes irritation, and supports skin barrier repair.
Usually helps with
Calming the skin and enhancing overall hydration.
Watch for
Beneficial for most skin types, especially those prone to redness or irritation.
Skin-conditioning agent
Badness
2.0 / 10
A type of lipid that is naturally found in the skin barrier. It helps to restore and maintain the skin's protective barrier.
Usually helps with
Strengthening the skin barrier and preventing moisture loss.
Watch for
Crucial for maintaining skin health and resilience.
Skin-conditioning agent
Badness
2.5 / 10
A lipid that plays a role in skin barrier function and has anti-inflammatory properties.
Usually helps with
Supporting barrier health and calming the skin.
Watch for
Works alongside ceramides to improve skin's defense mechanisms.
Humectant and pH adjuster
Badness
1.9 / 10
A salt of lactic acid that acts as a humectant and helps maintain the skin's natural moisturizing factor (NMF).
Usually helps with
Boosting hydration and supporting skin's natural moisture balance.
Watch for
Can also help with mild exfoliation at higher concentrations, but here it's primarily for hydration.
pH adjuster and exfoliant
Badness
2.8 / 10
Used here primarily to adjust the pH of the formula for optimal stability and efficacy. At higher concentrations, it's an AHA exfoliant.
Usually helps with
Ensuring the formula is stable and effective.
Watch for
In this concentration, it's unlikely to cause significant exfoliation or irritation.
Chelating agent
Badness
0.8 / 10
Helps to stabilize the formula by binding to metal ions that can degrade the product over time.
Usually helps with
Maintaining product integrity and shelf life.
Watch for
A common and safe ingredient for formula stability.
Preservative
Badness
3.1 / 10
A widely used preservative that prevents the growth of bacteria and fungi, ensuring the product remains safe to use.
Usually helps with
Product safety and preventing microbial contamination.
Watch for
Generally safe at cosmetic concentrations, but some individuals may be sensitive.
Preservative
Badness
3.4 / 10
Works with other preservatives to protect the formula from spoilage and contamination.
Usually helps with
Ensuring the longevity and safety of the product.
Watch for
Another common preservative; sensitivity is possible but not widespread.
Compare before you buy
A good product page should push you into the next decision, not trap you inside one product page forever. These are the cleaner next clicks.
Read next
Use this if you want to check whether the active and support ingredients make sense for your skin.
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Use this if the bigger question is where this belongs in the routine without overlapping other actives.
Read next
Read this if product overlap and routine chaos are the real issue.
FAQ
This serum is best for most skin types, especially those experiencing mild dryness, dehydration, or dullness. It's also great for anyone looking to add a simple, effective hydrating step to their routine without introducing strong actives.
Apply a few drops after cleansing and before your moisturizer. For enhanced hydration, apply to slightly damp skin. Always follow with a moisturizer to seal in the benefits.
While generally compatible, if your skin is very sensitive, you might want to avoid using it immediately after strong exfoliating acids or retinoids without a good moisturizer in between. It doesn't typically interfere with actives, but it's always wise to observe your skin's reaction.
Yes, if you're looking for an affordable, reliable serum to boost surface hydration and complement your existing routine. It's a solid choice for maintaining comfortable, plump-looking skin, especially when layered correctly.
