Hydrating serum
Vichy Minéral 89 Hyaluronic Acid Booster
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Used personally
A minimal hydrating serum built on 89% Vichy volcanic water with a low-molecular-weight hyaluronic acid. It is a hydration and layering product rather than a treatment — there is no exfoliant, retinoid, or brightening active in it.
Our verdict
Worth it if your skin is dehydrated and you want a hydration layer that conflicts with nothing — it layers under any active, any sunscreen, any makeup, without pilling. Skip it if you expect treatment: there is no exfoliant, retinoid, or brightening active here, and cheaper hyaluronic acid serums do the same job.
From research to routine
Where this fits in your routine
Answer three quiet questions and we will place this decision inside a full morning and evening routine for dehydrated combination skin — in order, with what to skip.
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Open The Ritual LabWhat it does well
One of the easiest serums to layer — no tack, no pilling, no active conflicts — on a short, fragrance-free ingredient list that reactive skin tolerates.
Where it falls short
It targets nothing specific, needs an occlusive over it in dry air, and costs considerably more than a pharmacy hyaluronic acid serum with the same working ingredients.
- Key actives
- Hyaluronic acid, glycerin, 89% mineralizing water
- Texture
- Clear bouncy gel, absorbs in seconds
- Fragrance
- Fragrance-free, paraben-free
- Best for
- Dehydrated skin, layering under actives
- Size and price band
- 50 ml · Mid-range
Why this one for you: One of the easiest serums to layer — no tack, no pilling, no active conflicts — on a short, fragrance-free ingredient list that reactive skin tolerates.
Worth it if your skin is dehydrated and you want a hydration layer that conflicts with nothing — it layers under any active, any sunscreen, any makeup, without pilling. Skip it if you expect treatment: there is no exfoliant, retinoid, or brightening active here, and cheaper hyaluronic acid serums do the same job.
How we assessed this product
Maria Alejandra has used this product herself, and the texture and wear notes below come from that use. Everything about ingredients and evidence is checked separately: we read the full INCI list, check the disclosed active concentration and vehicle, and cross-check each active against peer-reviewed dermatology literature and the consensus positions of dermatology bodies. We note fragrance and common sensitizers, packaging suitability for light- or air-sensitive actives, and price per use. Claims the brand has not substantiated are reported as claims. Nothing here is sponsored or gifted, and no commission changes a verdict.
What I tested
Used daily through one full bottle, mainly in the morning.
- Texture
- Watery gel that feels closer to an essence than a serum.
- Application
- Two or three drops spread over a damp face; absorbs in seconds.
- Finish
- Slightly tacky for the first minute, then completely invisible.
- Pilling
- No pilling under sunscreen or foundation in my routine.
- Fragrance
- Very light, fades quickly.
- Irritation
- No stinging, including on days when my barrier was already unhappy.
- Layering
- Sits well as the first step after cleansing, before anything heavier.
- Packaging
- Pump bottle, clean to use and easy to control the dose.
Key ingredients
- Hyaluronic acid
- Draws water into the upper epidermis. Effective when applied to damp skin and sealed with a moisturizer; drying without that seal in low humidity.
- Vichy volcanic mineralizing water 89%
- Mineral-rich thermal water. The marketing around trace minerals outpaces the evidence, but as a hydrating base it does no harm.
- Glycerin
- The workhorse humectant doing much of the quiet work here.
Texture and finish
A clear, slightly bouncy gel that spreads thinly and absorbs in seconds with no tack. It is one of the easiest serums to layer under anything, including sunscreen and makeup.
| Skin type | How it feels | Verdict |
|---|---|---|
| Dry | Hydrating but not sealing | Only works if you follow with a cream |
| Normal | Weightless, instant absorption | Good everyday hydration layer |
| Combination | No shine, no residue | Strong pick morning and night |
| Oily | Feels like water | Best case — hydration without heaviness |
| Sensitive / reactive | No sting, no fragrance | Excellent — short, calm ingredient list |
| Acne-prone | Oil-free, layers cleanly | Safe filler step next to a retinoid |
It suits you if
- Your skin is dehydrated but not necessarily dry
- You want a hydration layer that does not conflict with any active
- You are sensitive and want a very short ingredient list
Skip it if
- You want a treatment serum — this targets nothing specific
- You live somewhere very dry and will not seal it with a cream
- You are trying to keep your routine minimal on a budget
Pros
- Fragrance-free, paraben-free, and extremely well tolerated
- Layers under everything without pilling
- Pump packaging, generous bottle size
Cons
- Not a treatment; expensive for what is essentially hydration
- Needs an occlusive over it in dry climates
- The mineral-water claims are thinner than the marketing suggests
What I'd buy instead
If this one is not the right fit, these are the products I would look at next, and the reason for each.
- The Ordinary Hyaluronic Acid 2% + B5
- The same hydrating-layer job for a fraction of the price, if the mineral water and packaging are not what you are paying for.
- Neutrogena Hydro Boost Water Gel
- If you would rather one lightweight step than a booster plus a moisturizer.
The complaints people actually make
These are the recurring criticisms in published customer reviews, with what the formula explains about each one.
- It did nothing for my skin.
- It is a hydration layer, not a treatment. There is no acid, retinoid, or brightener in the formula, so visible change is limited to plumpness and comfort — and only when a moisturizer seals it.
- It made my face drier.
- Hyaluronic acid draws water from wherever it can, including deeper skin, when the air is dry and nothing occludes it. Apply to damp skin and follow immediately with a cream; that single change resolves most of these reports.
- It is overpriced for what it is.
- Fair. The working ingredients are glycerin and hyaluronic acid, both cheap. You are paying for the texture, the packaging and the tolerance record — a pharmacy HA serum delivers most of the same hydration.
- The mineral water claims sound like marketing.
- They largely are. Trace minerals in thermal water have thin evidence for topical benefit; the hydration comes from the humectants. That does not make the product ineffective, only less special than the name suggests.
- It pilled under my sunscreen.
- Uncommon with this texture, and usually a matter of too many drops or not letting the layer settle. Two to three drops, pressed in, then wait 30 seconds.
How to use it
- 1Two to three drops on damp skin after cleansing, morning and night.
- 2Follow immediately with moisturizer to seal the humectants.
- 3Can be used under a retinoid to reduce dryness.
Where it fits in a routine
First serum step, morning and night, before treatment serums and moisturizer.
Frequently asked
- Is Vichy Minéral 89 a moisturizer?
- No. It is a humectant serum. It hydrates the surface layers but has almost no occlusive content, so it needs a moisturizer over it to hold the water in.
- Can I use it with retinol or acids?
- Yes, and it is one of the safest layering partners because it contains no competing actives. Many people apply it before a retinoid specifically to reduce dryness.
- Morning or night?
- Both. It absorbs quickly enough for the morning under sunscreen and works at night under a richer cream.
- Is it safe during pregnancy?
- There are no retinoids or high-strength acids in it, so it is generally considered a safe hydration step. Confirm your routine with your own doctor.
- Do I apply it to wet or dry skin?
- Damp skin. Hyaluronic acid needs available water to draw on, and applying it to a dry face in dry air is what causes the tightness some people report.
- How does it compare to a cheaper hyaluronic acid serum?
- The hydration is comparable. What you gain here is a very clean, fragrance-free formula, pump packaging, and a texture that never pills — worth it to some people, not to others.
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References and sources
Evidence reviewed: Cosmetic Ingredient Review; American Academy of Dermatology. Last read in full August 2026 by Maria Alejandra.
Ingredient behavior, tested concentrations, and safety guidance come from the sources below. Which specific product we suggest, the order we put steps in, and how gently we ramp a routine up are our own editorial judgement — useful, but not clinical evidence, and never a substitute for a dermatologist who can see your skin.
- 1.Cosmetic ingredient safety assessments — Cosmetic Ingredient Review
- 2.Dry skin: diagnosis and treatment — American Academy of Dermatology
- 3.Skin care tips dermatologists use — American Academy of Dermatology
This breakdown is based on publicly available ingredient lists and manufacturer information.
