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JUST 5% Hyaluronic Acid Hydrating Fluid

JUST 5% Hyaluronic Acid Hydrating Fluid

Product Description

Product overview

Made in Various INTERNATIONAL

A lightweight, fast-absorbing hydrating fluid with 5% Hyaluronic Acid and Panthenol (Pro-Vitamin B5) that deeply hydrates skin, reduces fine lines, and plumps for a fresher, smoother appearance. This minimalist European formula delivers professional-grade hydration at an affordable price.

5% Hyaluronic Acid Fragrance-Free Paraben-Free Cruelty-Free Vegan Oil-Free Silicone-Free Fungal Acne Safe
Pregnancy
Yes
Fungal Acne
Yes
Comedogenic
0/5
Size
30ml / 1 fl oz
Skin Type
All Types
Key Active
5% HA
pH Level
5.5-6.5
Use Time
AM & PM
Real reviews · YouTube Shorts
Why it's different

Deep Hydration

5% Sodium Hyaluronate attracts and holds up to 1000x its weight in water, providing intense moisture retention throughout the day.

01

Texture & feel

SENSORY
Consistency
Watery Fluid
Scent
Fragrance-Free
Absorption
Fast (30 sec)
Finish
Slightly Dewy

Deep Hydration

5% Sodium Hyaluronate attracts and holds up to 1000x its weight in water, providing intense moisture retention throughout the day.

Plumping Effect

Helps reduce the appearance of fine lines and wrinkles by plumping dehydrated skin from within for a smoother complexion.

Barrier Support

Panthenol (Pro-Vitamin B5) soothes and helps strengthen the skin barrier, promoting moisture retention and skin health.

Minimalist Formula

Only 8 essential ingredients - no fillers, fragrances, or irritants. Clean, effective, European-regulated skincare.

02

Safety & compatibility

SAFE
Pregnancy & Breastfeeding Safe

Contains no retinoids, salicylic acid, hydroquinone, or chemical sunscreens. Safe for use during pregnancy and nursing.

Fungal Acne (Malassezia) Safe

Free from ferments, fatty acids, esters, and polysorbates that can feed malassezia yeast. Verified FA-safe formula.

Sensitive Skin Friendly

Fragrance-free, hypoallergenic formula with no common irritants. Dermatologically formulated for even reactive skin.

Patch Test Recommended

As with any new skincare product, perform a patch test on your inner arm 24 hours before first use, especially if you have very sensitive skin.

03

Ingredient breakdown

INGREDIENTS

Sodium Hyaluronate 5%Proven

The sodium salt form of hyaluronic acid - a powerful humectant naturally found in skin that can hold up to 1000 times its weight in water. This high 5% concentration delivers intense hydration.

  • Mechanism: Draws moisture from the environment and deeper skin layers to hydrate the epidermis
  • Clinical Evidence: Studies show significant improvement in skin hydration, elasticity, and wrinkle depth reduction
  • Molecular Weight: Sodium hyaluronate penetrates more effectively than pure hyaluronic acid due to smaller molecular size
Apply to damp skin for optimal results. HA works best when there's moisture to bind to.

Panthenol (Pro-Vitamin B5) ~2%Proven

A powerful humectant and skin-conditioning agent that converts to Vitamin B5 (pantothenic acid) when absorbed. Widely used for its soothing and healing properties.

  • Hydration: Attracts and holds moisture in the skin, enhancing barrier function
  • Healing: Promotes wound healing and skin tissue repair
  • Soothing: Anti-inflammatory properties help calm irritated or sensitive skin

Propylene Glycol ~2%Supporting

A lightweight humectant that helps ingredients penetrate the skin and enhances moisture retention. Also acts as a preservative booster.

  • Function: Humectant, penetration enhancer, and solvent
  • Safety: Cosmetically safe at typical concentrations, non-comedogenic rating of 0

8 ingredients

Water / Aqua, Sodium Hyaluronate, Propylene Glycol, Provitamin B5 / Panthenol, Xanthan Gum, PPG-1-PEG-9 Lauryl Glycol Ether, Phenoxyethanol, Disodium EDTA

FREE FROM: Parabens, Fragrances, Sulfates, Silicones, Oils, Alcohols (drying), Common Allergens, Gluten, Mineral Oil, Artificial Colors, PEGs (except trace amounts), Formaldehyde Releasers
04

Where it fits in your routine

ROUTINE
1
Cleanser
2
Toner
3
HA Fluid
4
Serum
5
Moisturizer
6
Sunscreen (AM)

Apply after cleansing and toning on damp skin, before heavier serums and moisturizers. Can be used both AM and PM.

05

How to use

HOW TO USE
1

Cleanse & Prep

Start with clean skin. Leave face slightly damp after cleansing or mist with toner - HA works best on moist skin.

2

Apply Drops

Dispense 4-5 drops onto fingertips. A little goes a long way - 3 drops for face, 4-5 for face, neck, and décolletage.

3

Gently Press In

Gently press and pat the fluid into skin rather than rubbing. This helps absorption and prevents tugging.

4

Wait & Layer

Wait 30-60 seconds until fully absorbed before applying next product. Always follow with a moisturizer to seal in hydration.

06

Who is it for?

WHO

Perfect for you if:

  • You have dehydrated or dry skin needing intense moisture
  • You want to reduce the appearance of fine lines
  • You prefer minimalist, no-fuss skincare formulas
  • You're on a budget but want effective actives
  • You have sensitive, reactive, or acne-prone skin
  • You're pregnant or breastfeeding and need safe options
  • You struggle with fungal acne (malassezia)

Consider alternatives if:

  • You prefer thicker, more luxurious serum textures
  • You want multiple HA molecular weights for multi-depth hydration
  • You need additional anti-aging actives in one product
  • You live in very dry/arid climates without using moisturizer after
  • You prefer pump packaging over dropper bottles
07

Skin type compatibility

SKIN TYPES
Dry Skin
Excellent

Ideal for dry skin types. 5% HA provides deep hydration. Always follow with moisturizer to lock in moisture.

Oily Skin
Excellent

Lightweight, oil-free formula absorbs quickly without adding shine or greasiness. Won't clog pores.

Combination Skin
Excellent

Balances hydration across different facial zones without overwhelming oily areas or neglecting dry patches.

Sensitive Skin
Excellent

Fragrance-free, minimal ingredients formula. Panthenol provides soothing benefits. Very low irritation potential.

Acne-Prone Skin
Excellent

Non-comedogenic rating of 0. Fungal acne safe. Oil-free formula won't trigger breakouts or feed acne-causing bacteria.

08

Results timeline

MONTH 2+
Immediately

Instant Hydration Boost

Skin feels instantly more hydrated and plump. Temporary smoothing of fine lines visible as skin absorbs moisture.

95% noticed immediate hydration
Week 1-2

Improved Skin Texture

Sustained hydration begins to improve overall skin texture. Skin feels softer, smoother, and more supple throughout the day.

80% noticed softer skin
Week 3-4

Visible Plumping Effect

Consistent use shows visible reduction in fine lines and dehydration lines. Skin appears healthier and more radiant.

70% noticed reduced fine lines
Month 2+

Long-Term Skin Health

Improved skin barrier function and moisture retention. Skin maintains hydration better throughout the day with continued use.

85% would repurchase
09

Ratings by platform

702+ REVIEWS
Amazon
4.2
Rating
500+
Reviews
Main complaint: Can feel slightly sticky before fully absorbing; small bottle size
Brand Website
4.7
Rating
200+
Reviews
Main complaint: Some users prefer thicker serum textures; dropper can be messy
MakeupAlley
2.5
Rating
2
Reviews
Main complaint: Limited reviews; some find texture too sticky initially
WIMJ (Science)
75
Effectiveness Score
Low
Irritation Risk
Note: Humectant-only formula - recommend sealing with occlusive moisturizer
10

Pros & cons

BALANCED

Praised

  • High 5% HA concentration at budget price
  • Lightweight, fast-absorbing formula
  • Minimalist 8-ingredient formula
  • Fungal acne and pregnancy safe
  • No fragrance, silicones, or parabens
  • Works well under makeup
  • Visibly plumps and hydrates skin
  • Suitable for all skin types including sensitive

Criticized

  • Can feel slightly sticky/tacky before absorbing
  • Single molecular weight HA (not multi-depth)
  • Small 30ml bottle size
  • Dropper packaging less hygienic than pump
  • Needs moisturizer on top in dry climates
  • Plain, utilitarian packaging
  • Less widely available than major brands
11

Budget-friendly alternatives (dupes)

DUPES
90% Match
Hyaluronic Acid 2% + B5 Serum
$8.90
Budget Pick

Lower HA concentration (2% vs 5%) but includes multiple molecular weights for multi-depth hydration. Similar B5 content. More widely available.

85% Match
Hyaluronic Acid Serum
$18.99
Similar Price

Contains ceramides for barrier support plus HA. Gel-cream texture is thicker. MVE technology for extended release. More complex formula.

75% Match
Hydro Boost Hydrating Serum
$19.99
Drugstore

Contains hyaluronic acid plus trehalose for hydration. More complex formula with additional moisturizing ingredients. Widely available at drugstores.

12

Comparison with competitors

SIDE-BY-SIDE
Pycnogenol 5%
HA Concentration 2%
HA Types 5 (Multi-weight)
Size 30ml
Ingredient Count 22
Fungal Acne Safe Yes
Additional Actives Panthenol, Ceramides
Hyalu B5 Eyes Serum
HA Concentration Not disclosed
HA Types 2
Size 30ml
Ingredient Count 22
Fungal Acne Safe No (Contains fragrance)
Additional Actives Madecassoside, B5
Hydrating Toner
HA Concentration Not disclosed
HA Types 1
Size 30ml
Ingredient Count 20
Fungal Acne Safe No (Contains fatty alcohols)
Additional Actives 3 Ceramides, B5
13

Storage & shelf life

12 MONTHS
Period After Opening (PAO)

12 months after opening

Storage

Store in a cool, dry place away from direct sunlight. Can be refrigerated for a refreshing cooling effect.

Packaging

Glass dropper bottle with pipette applicator for precise dispensing

Travel Friendly

Yes - 30ml is under the 100ml liquid limit for carry-on luggage

13

Frequently asked questions

FAQ

Yes, this product is considered safe for use during pregnancy and breastfeeding. It contains no retinoids, salicylic acid, hydroquinone, chemical sunscreens, or other ingredients typically flagged as concerning during pregnancy. The simple formula of hyaluronic acid and panthenol has an excellent safety profile. However, as with any skincare product, consult your healthcare provider if you have specific concerns.

Yes, this product is verified fungal acne safe. It contains no ferments, fatty acids (C11-24), esters, polysorbates, or other ingredients that feed malassezia yeast. The minimalist 8-ingredient formula has been analyzed and confirmed FA-safe by ingredient checker databases including SkinSort and Folliculitis Scout.

Yes! Hyaluronic acid is one of the most versatile ingredients and pairs well with virtually everything. It can actually help buffer more irritating actives. Apply HA first on damp skin, let it absorb, then apply your retinol or vitamin C. For acids (AHA/BHA), apply the acid first, wait a few minutes, then apply HA to help replenish hydration. Do not combine with other REVOX B77 products containing HA (like Collagen Amino Acids + HA) as the concentration would be excessive.

This product is excellent for ALL skin types. It's especially beneficial for dry and dehydrated skin due to the high 5% HA concentration. Oily and acne-prone skin types will appreciate the lightweight, oil-free formula that hydrates without adding shine or clogging pores. Sensitive skin types benefit from the fragrance-free, minimalist formulation with soothing panthenol.

You'll notice immediate hydration and a plumping effect right after application. Within 1-2 weeks of consistent use, skin should feel noticeably softer and more supple. After 3-4 weeks, you may see visible improvement in fine lines, especially dehydration lines. For best results, use consistently twice daily and always follow with a moisturizer to seal in the hydration.

Apply after cleansing and toning, while skin is still slightly damp. This goes BEFORE heavier serums (like vitamin C or retinol), oils, and moisturizers. The rule is thinnest to thickest - and this watery fluid should be one of the first products after cleansing. Always finish with moisturizer to lock in the hydration, and sunscreen in the morning.

No, this product has a comedogenic rating of 0 out of 5 - the lowest possible. It contains no oils, silicones, or pore-clogging ingredients. Hyaluronic acid and panthenol are both non-comedogenic. The formula is oil-free and suitable for acne-prone skin. It will not cause or worsen breakouts.

The product has a PAO (Period After Opening) of 12 months. Once opened, use within one year for optimal efficacy. Store in a cool, dry place away from direct sunlight. If the product changes color, develops an unusual smell, or changes texture, discontinue use. The 30ml bottle typically lasts 2-3 months with twice-daily use.

— Skincarisma verdict
4.2 / 5 ★★★★☆

Verdict: REVOX B77 JUST 5% Hyaluronic Acid Hydrating Fluid delivers impressive hydration at an unbeatable price point. The high 5% concentration of HA combined with soothing Panthenol makes this a solid choice for anyone seeking effective, no-frills hydration. While it lacks the multi-molecular weight complex of pricier alternatives and has a somewhat basic texture, the minimalist 8-ingredient formula is ideal for sensitive, acne-prone, and fungal acne sufferers. Best suited for those who prioritize clean, effective ingredients over luxury texture. Always follow with moisturizer for best results.

Product Overview

question
lightbulb What are Quick Product Notes?

Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.

muscle Pro Tip Alert!

Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.

Awesome, I Understand!

Quick Product Notes

Click on icons for more information
question
lightbulb What are Notable Effects & Ingredients?

Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging «promises» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.

We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.

muscle Pro Tip Alert!

Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.

Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you

Awesome, I Understand!

Notable Effects & Ingredients

wound Promotes Wound Healing from 2 ingredient(s):
Sodium Hyaluronate Panthenol
question
lightbulb What are Ingredients Related to Skin Type?

Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.

We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.

muscle Pro Tip Alert!

A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.

One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!

Awesome, I Understand!

Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
2 1
oily-skin Oily/Acne-Prone Skin
sensitive-skin Sensitive Skin
question
lightbulb What is the Ingredient Safety Breakdown?

Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.

muscle Pro Tip Alert!

EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.

Awesome, I Understand!

Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
62% 25% 12%

Product ingredient list

Showing first 5 of 8 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
1 Unknown
Water
Solvent, Skin Conditioning
1 A
Sodium Hyaluronate
Skin Conditioning, Humectant
Promotes Wound Healing
Hydrating
3 B
Propylene Glycol
Solvent, Skin Conditioning, Fragrance, Humectant, Viscosity Controlling, Viscosity Decreasing Agent, Skin-Conditioningagent - Miscellaneous
Hydrating
1 A
Panthenol
Skin Conditioning, Antistatic Agent, Hair Conditioning
Promotes Wound Healing
Hydrating
Redness
Irritation
1 A
Xanthan Gum
Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant -Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling
VIEW ALL INGREDIENTS