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Hydro Boost Solution Serum

Hydro Boost Solution Serum

Product Description

Product overview

Made in Various INTERNATIONAL

A lightweight, fast-absorbing hyaluronic acid serum formulated with 7 types of HA at multiple molecular weights plus adenosine. Delivers deep, lasting hydration while smoothing fine lines for plump, dewy skin without stickiness.

Vegan Certified Cruelty-Free Dermatologically Tested Fragrance-Free Fungal Acne Safe Alcohol-Free Paraben-Free Silicone-Free Oil-Free
Pregnancy
Yes
Fungal Acne
Yes
Comedogenic
0/5
Type
Serum
Size
45ml / 1.52 fl oz
Packaging
Glass Dropper
Skin Type
All Types
Key Active
7 Types of HA
Real reviews · YouTube Shorts
Why it's different

7 Types of Hyaluronic Acid

Multi-molecular weight HA complex delivers hydration at every skin layer, from the surface to deep within the dermis.

01

Texture & feel

SENSORY
Consistency
Lightweight Gel
Scent
Fragrance-Free
Absorption
Under 30 Seconds
Finish
Dewy, Non-Sticky

7 Types of Hyaluronic Acid

Multi-molecular weight HA complex delivers hydration at every skin layer, from the surface to deep within the dermis.

Anti-Wrinkle Adenosine

Clinically recognized anti-aging ingredient that improves skin elasticity and reduces the appearance of fine lines over time.

Soothing Allantoin

Calms irritation, promotes skin healing, and provides gentle moisture suitable for even the most sensitive skin.

Clean & Minimal Formula

Free from artificial fragrance, coloring, alcohol, parabens, sulfates, and silicones. Dermatologically tested for zero irritation.

02

Safety & compatibility

SAFE
Pregnancy & Breastfeeding Safe

Contains no retinoids, salicylic acid, hydroquinone, or chemical sunscreens. All ingredients are considered safe during pregnancy and nursing.

Fungal Acne (Malassezia) Safe

Free from ferments, fatty acids, esters, polysorbates, and oils that feed malassezia yeast. Confirmed safe by SkinSort ingredient analysis.

Non-Comedogenic (Rating: 0/5)

Oil-free, silicone-free formula with no known pore-clogging ingredients. Suitable for acne-prone skin without risk of breakouts.

Sensitive Skin Friendly

Dermatologically tested for no irritation. Free from common allergens (EU allergen-free), artificial fragrances, and harsh alcohols.

Compatible with Active Ingredients

Safe to layer with retinol, vitamin C, AHA, BHA, and niacinamide. Hyaluronic acid complements and buffers the effects of other actives.

Reef Safe

Contains no oxybenzone, octinoxate, or other reef-harmful ingredients. Safe for ocean-conscious consumers.

03

Ingredient breakdown

INGREDIENTS

Hyaluronic Acid (7 Types) ~1.1–1.7%Proven

Seven forms of hyaluronic acid at different molecular weights work together to hydrate multiple layers of the skin. Includes standard HA, hydrolyzed HA, sodium hyaluronate, hydrolyzed sodium hyaluronate, hydroxypropyltrimonium hyaluronate, sodium hyaluronate crosspolymer, and sodium acetylated hyaluronate.

  • High MW HA: Forms a moisture-locking film on the skin surface, preventing transepidermal water loss.
  • Low MW HA: Penetrates deeper layers to plump skin and reduce fine lines from within.
  • Acetylated HA: Lipophilic form that binds more effectively to cell membranes for longer-lasting hydration.
  • Crosspolymer HA: Creates a 3D moisture network on the skin for sustained release hydration.
Multi-weight HA approach provides both immediate surface hydration and long-term deep moisture retention.

Adenosine ~0.04%Proven

An endogenous nucleoside recognized by KFDA as an effective anti-wrinkle active ingredient. Stimulates collagen production and improves skin elasticity when used consistently.

  • Clinical Evidence: Approved as a functional anti-wrinkle ingredient by Korean FDA at concentrations as low as 0.04%.
  • Mechanism: Promotes fibroblast proliferation and collagen synthesis, improving skin firmness over 4–8 weeks.

AllantoinProven

A gentle, well-studied ingredient that soothes irritated skin, promotes cell regeneration, and provides mild moisturizing effects. Widely used in sensitive-skin formulations.

  • Soothing: Reduces redness and irritation, making it ideal for reactive or compromised skin.
  • Healing: Stimulates cell proliferation and supports the skin's natural repair process.

Glycerin ~2.9–4.3%Proven

One of the most effective and well-researched humectant ingredients in skincare. Naturally found in the skin, it draws moisture from the environment and deeper skin layers to keep the surface hydrated.

  • Research: A 2016 study found glycerin to be more effective as a humectant than both AHAs and hyaluronic acid.
  • Skin-identical: Mimics the skin's natural moisturizing factor (NMF) for excellent compatibility.

Botanical Extracts ComplexPromising

A blend of neem (Melia Azadirachta), aloe vera, turmeric root, holy basil, eggplant, and red algae (Corallina Officinalis) that provides antioxidant protection, soothes inflammation, and supports overall skin health.

  • Turmeric (Curcumin): Potent antioxidant with anti-inflammatory and sebum-regulating properties, promising for acne-prone skin.
  • Red Algae: Contains polysaccharides with antioxidant activity and helps attract moisture to the skin surface.
  • Neem: Antibacterial and anti-inflammatory properties help calm breakout-prone skin.
Neem and turmeric extracts may cause mild sensitivity in very reactive skin types. Patch test recommended for extremely sensitive individuals.

28 ingredients

Water, Butylene Glycol, Glycerin, Dipropylene Glycol, 1,2-Hexanediol, Pentylene Glycol, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Sodium Hyaluronate Crosspolymer, Sodium Acetylated Hyaluronate, Carbomer, Tromethamine, Cellulose Gum, Xanthan Gum, Adenosine, Disodium EDTA, Allantoin, Melia Azadirachta Leaf Extract, Melia Azadirachta Flower Extract, Coccinia Indica Fruit Extract, Aloe Barbadensis Flower Extract, Solanum Melongena (Eggplant) Fruit Extract, Ocimum Sanctum Leaf Extract, Corallina Officinalis Extract, Curcuma Longa (Turmeric) Root Extract

FREE FROM: Artificial Fragrance, Artificial Coloring, Parabens, Sulfates, Alcohol (Ethanol), Silicones, Mineral Oil, Essential Oils, PEGs, Phenoxyethanol
04

Where it fits in your routine

ROUTINE
1
Cleanser
2
Toner
3
This Serum
4
Moisturizer
5
Sunscreen (AM)

Apply to slightly damp skin after toner for best absorption. Use morning and evening. Always follow with a moisturizer to seal in hydration.

05

How to use

HOW TO USE
1

Cleanse & Tone

Start with a clean face. Apply your toner and leave the skin slightly damp — this helps hyaluronic acid draw in more moisture.

2

Dispense the Serum

Dip the dropper into the bottle, release to fill, and dispense 2–3 drops onto your fingertips or directly onto the face. Do not let the dropper touch your skin.

3

Pat & Press Gently

Gently pat and press the serum into your face, focusing on dry areas like cheeks and forehead. Avoid rubbing — pressing motions improve absorption.

4

Layer if Desired

For extra hydration, apply a second thin layer once the first has been absorbed. Then follow with your moisturizer to lock everything in.

06

Who is it for?

WHO

Perfect for you if:

  • Your skin feels dehydrated, tight, or flaky
  • You want a lightweight serum that layers well under makeup
  • You are pregnant or breastfeeding and need a safe hydrating serum
  • You have fungal acne and need a malassezia-safe product
  • You prefer a clean, fragrance-free, vegan formula
  • You want to address early signs of aging (fine lines)

Consider alternatives if:

  • You have extremely dry skin and need a rich, occlusive treatment
  • You want a single product with high-dose active ingredients (vitamin C, retinol)
  • You prefer a matte, completely oil-free finish with no dewiness
  • You need a multi-tasking serum that targets hyperpigmentation or severe acne
07

Skin type compatibility

SKIN TYPES
Oily Skin
Excellent

Ultra-lightweight gel absorbs instantly without adding shine or greasiness. Oil-free and silicone-free formula won't clog pores.

Dry Skin
Good

Provides excellent hydration boost but will need a richer moisturizer or cream on top to seal in moisture. Layer for best results.

Combination Skin
Excellent

Balances hydration across different zones without overwhelming oily areas. Lightweight enough for the T-zone, hydrating enough for cheeks.

Sensitive Skin
Excellent

Dermatologically tested for zero irritation. Fragrance-free, allergen-free, and enriched with soothing allantoin. Ideal for reactive skin.

Acne-Prone Skin
Excellent

Non-comedogenic (0/5), fungal acne safe, oil-free. Contains neem and turmeric extracts with antibacterial properties to calm breakouts.

08

Results timeline

8–12 WEEKS
Immediately

Instant Hydration & Plumping

Skin feels immediately hydrated, plumped, and refreshed. The multi-weight HA complex draws moisture to the surface for a visible dewy glow right after application.

90% noticed instant hydration boost
1–2 Weeks

Improved Skin Texture

Consistent use smooths rough patches and reduces the feeling of tightness. Skin barrier begins to strengthen with sustained moisture replenishment.

75% reported softer, smoother skin
4–6 Weeks

Visible Fine Line Reduction

Adenosine and deep-penetrating low-molecular HA work together to improve elasticity. Fine lines around the eyes and forehead begin to appear softer and less pronounced.

60% noticed reduction in fine lines
8–12 Weeks

Long-Term Skin Health

Skin barrier is visibly strengthened with improved moisture retention. Overall complexion looks healthier, more radiant, and more resilient to environmental stressors.

70% reported improved overall skin condition
09

Ratings by platform

280+ REVIEWS
Amazon
4.3
Rating
200+
Reviews
Main complaint: Small bottle size (45ml) for the price point; runs out quickly with daily use
YesStyle
4.5
Rating
50+
Reviews
Main complaint: Slightly thicker texture than expected for a hyaluronic acid serum
Picky App
4.4
Rating
30+
Reviews
Main complaint: Price considered high compared to similar HA serums on the market
WIMJ (Science Review)
87/100
Effectiveness
Medium
Irritation Risk
Note: Medium irritation potential flagged due to 1,2-Hexanediol and some botanical extracts
10

Pros & cons

BALANCED

Praised

  • 7 types of HA provide multi-layer, deep hydration
  • Lightweight, non-sticky texture absorbs quickly
  • Vegan, cruelty-free, and dermatologically tested
  • Fungal acne safe and non-comedogenic
  • Pregnancy and breastfeeding safe
  • Free from fragrance, parabens, alcohol, and silicones
  • Layers beautifully under makeup
  • Contains anti-aging adenosine

Criticized

  • Small 45ml bottle runs out quickly with daily use
  • Higher price per ml compared to some competitors
  • Slightly thicker than expected for a hydrating serum
  • Not rich enough alone for very dry skin types
  • Glass dropper bottle less travel-friendly than pumps
  • Limited availability outside Asian beauty retailers
11

Budget-friendly alternatives (dupes)

DUPES
85% Match
Dive-In Low Molecular Hyaluronic Acid Cleansing Foam
$13.00
Budget Pick

Uses 5 types of hyaluronic acid (vs. 7) plus panthenol and ceramide NP for added barrier support. Thinner, more watery texture. Larger 50ml bottle at a lower price point. Widely considered the top K-beauty HA serum.

70% Match
Hyaluronic Acid 2% + B5 Serum
$8.90
Budget Pick

Simpler formula with 3 forms of HA plus Vitamin B5. Higher HA concentration (2%) but fewer molecular weight varieties. More viscous texture. Incredible value at 30ml. No adenosine or botanical extracts.

75% Match
Hyaluronic Acid Water Essence
$14.00
Similar Price

Watery essence texture with multiple HA types plus soothing plant extracts. Lighter, more hydrating feel ideal for humid climates. Larger 80ml bottle offers better value per ml. No adenosine for anti-aging.

12

Comparison with competitors

SIDE-BY-SIDE
Serum
HA Types 5 Types
Size 50ml
Anti-Aging Active None
Fungal Acne Safe No (Polyglyceryl-10 Laurate)
Extra Benefits Panthenol + Ceramide NP
Price per ml $0.26/ml
Pycnogenol 5%
HA Types 3 Types + Crosspolymer
Size 30ml
Anti-Aging Active None
Fungal Acne Safe Yes
Extra Benefits Vitamin B5
Price per ml $0.30/ml
Triple Hyaluronic Moisture Ampoule
HA Types 3 Types
Size 40ml
Anti-Aging Active None
Fungal Acne Safe No
Extra Benefits Vitamin B5 + Vitamin B3
Price per ml $0.55/ml
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. Keep the dropper cap tightly closed after each use to prevent contamination.

Packaging

Glass bottle with pipette/dropper for precise dispensing. Hygienic design keeps the formula protected from air and light exposure.

Travel Friendly

Yes, 45ml is well under the 100ml carry-on limit. Glass bottle — pack in a protective pouch to prevent breakage.

13

Frequently asked questions

FAQ

Yes. This serum contains no retinoids, salicylic acid, hydroquinone, chemical sunscreens, or any other ingredients flagged as unsafe during pregnancy or breastfeeding. Its formula is based on hyaluronic acid, glycerin, allantoin, and adenosine — all considered safe for use throughout pregnancy and nursing. Always consult your healthcare provider if you have specific concerns.

Yes. This serum is confirmed fungal acne safe by multiple ingredient databases (SkinSort, SkinCarisma). It contains no fermented ingredients, fatty acids, esters, polysorbates, or oils that could feed malassezia yeast. It is one of the few multi-HA serums on the market that maintains full FA safety.

Yes, absolutely. Hyaluronic acid is one of the most compatible ingredients in skincare. It can be layered with retinol, vitamin C (L-ascorbic acid), AHAs (glycolic, lactic acid), BHAs (salicylic acid), niacinamide, and more. In fact, applying this serum before stronger actives can help buffer potential irritation and boost hydration. Apply it on damp skin first, then layer your active on top.

This serum works well for all skin types. It is particularly excellent for oily, combination, sensitive, and acne-prone skin due to its lightweight, oil-free, non-comedogenic, fungal-acne-safe formula. For dry skin, it provides a strong hydration boost but should be paired with a richer moisturizer or cream to lock in the moisture.

You will notice an immediate hydration and plumping effect after the first application. Improved skin texture and softness typically become apparent within 1–2 weeks of consistent use. For anti-aging benefits (fine line reduction, improved elasticity from adenosine), expect to see visible results after 6–8 weeks of twice-daily use. Full long-term skin barrier improvement takes 8–12 weeks.

Apply after cleansing and toning, but before heavier serums, moisturizers, and sunscreen. The general rule is thinnest to thickest consistency. This serum fits in Step 3 of a typical routine: Cleanser → Toner → This Serum → Moisturizer → Sunscreen (AM). For best results, apply to slightly damp skin so the HA has moisture to draw into the skin. Can be used both morning and evening.

No. This serum has a comedogenic rating of 0/5. It contains no oils, silicones, fatty acids, or known pore-clogging ingredients. Every ingredient in the formula has a comedogenicity rating of 0, making it one of the safest serums for acne-prone and congestion-prone skin. It is also fungal acne safe.

The Period After Opening (PAO) is 12 months. Once opened, use within one year for optimal freshness and efficacy. The 45ml bottle typically lasts 6–8 weeks with twice-daily use (2–3 drops per application). Store in a cool, dry place with the cap securely tightened. If you notice any change in color, texture, or smell, discontinue use.

— Skincarisma verdict
4.3 / 5 ★★★★☆

Verdict: The Face Republic Hydro Boost Solution Serum is an excellent hydrating serum that stands out with its 7-type hyaluronic acid complex and added anti-aging adenosine — a rare combination at this price range. Its clean, minimal formula ticks nearly every safety box: pregnancy safe, fungal acne safe, non-comedogenic, vegan, and fragrance-free. The lightweight, non-sticky texture absorbs quickly and layers beautifully. The main drawback is the small 45ml bottle, which offers less value per ml compared to competitors like Torriden DIVE-IN. Overall, it is a strong choice for anyone seeking a safe, effective, no-frills hydrating serum with mild anti-aging benefits.

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.

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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

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Notable Effects & Ingredients

anti-aging Anti-Aging from 3 ingredient(s):
Hyaluronic Acid Hydrolyzed Hyaluronic Acid Adenosine
brightening Brightening from 3 ingredient(s):
Glycerin Hyaluronic Acid Hydrolyzed Hyaluronic Acid
wound Promotes Wound Healing from 7 ingredient(s):
Glycerin Hyaluronic Acid Hydrolyzed Hyaluronic Acid Hydrolyzed Sodium Hyaluronate Sodium Hyaluronate Adenosine Allantoin
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!

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Ingredients Related to Skin Types

Click on icons for more information
dry-skin Dry Skin
3
oily-skin Oily/Acne-Prone Skin
1
sensitive-skin Sensitive Skin
1
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.

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Ingredient Safety Breakdown

EWG Health Ratings
Low risk
Medium risk
High risk
Unknown risk
60% 39%

Product ingredient list

Showing first 5 of 28 ingredients
EWG CIR Ingredient Name & Cosmetic Functions Notes
1 Unknown
Water
Solvent, Skin Conditioning
1 A
Butylene Glycol
Solvent, Skin Conditioning, Masking, Fragrance, Humectant, Viscosity Controlling, Viscositydecreasing Agent
Hydrating
2 A
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
brightening Brightening
Promotes Wound Healing
Hydrating
1 A
Dipropylene Glycol
Fragrance, Solvent, Viscosity Decreasing Agent, Masking, Viscosity Controlling
1 A
1,2-Hexanediol
Solvent, Skin Conditioning
Hydrating
VIEW ALL INGREDIENTS