Hyaluronic Acid Serum
A lightweight, water-based hyaluronic acid serum that draws moisture deep into the skin for long-lasting hydration. Formulated with two forms of hyaluronic acid at different molecular weights, this serum penetrates multiple layers to combat dehydration and loss of firmness, leaving skin smooth, supple, and plump.
β¨ Texture & Feel
Multi-Weight Hydration
Contains two forms of hyaluronic acid with different molecular weights to hydrate multiple skin layers simultaneously.
Minimal Formula
Only 9 carefully selected ingredients - no fillers, no irritants, no unnecessary additives. Just effective hydration.
Clean & Vegan
Free from parabens, sulfates, silicones, oils, and fragrances. Leaping Bunny certified cruelty-free and 100% vegan.
Antioxidant Protection
Formulated with Vitamin E (Tocopherol) to protect skin from free radical damage while deeply hydrating.
π‘οΈ Safety & Compatibility
Hyaluronic acid is naturally occurring in the body and considered completely safe during pregnancy and breastfeeding. No retinoids, salicylic acid, or hydroquinone.
Free from fatty acids, oils, esters, polysorbates, and fermented ingredients that feed malassezia yeast. Confirmed safe by ingredient analysis.
Fragrance-free, alcohol-free, and free from common allergens. Minimalist formula reduces risk of irritation.
Comedogenic rating of 0/5. Will not clog pores or cause breakouts. Safe for acne-prone skin.
Apply to damp skin for optimal absorption. Hyaluronic acid draws moisture from its surroundings - damp skin provides that moisture source.
Always follow with a moisturizer to seal in hydration. In dry climates, HA can pull moisture from skin if not locked in properly.
π¬ Ingredient Breakdown
π§ Sodium Hyaluronate 1% Proven
The sodium salt form of hyaluronic acid - a naturally occurring molecule that can hold up to 1000x its weight in water. This formula contains two molecular weights for multi-depth hydration.
- Mechanism: Acts as a humectant, drawing water from the environment and deeper skin layers to the surface
- Benefits: Plumps fine lines, improves skin texture, maintains moisture barrier
- Research: Clinically proven to increase skin hydration and reduce transepidermal water loss
πΏ Glycerin Proven
A powerful humectant that's naturally found in skin. Studies show glycerin may be even more effective than hyaluronic acid at maintaining skin hydration.
- 2016 Study: Found glycerin to be more effective as a humectant than both AHAs and hyaluronic acid
- Properties: Antimicrobial, antiviral, helps strengthen skin barrier
- Safety: Comedogenic rating 0, non-irritating
𧴠Propanediol Supporting
A corn-derived glycol that softens, hydrates, and smooths the skin while improving product texture and absorption.
- Function: Solvent, humectant, and texture enhancer
- Safety: Non-sensitizing, non-irritating, derived from natural sources
π‘οΈ Tocopherol (Vitamin E) Proven
A fat-soluble antioxidant that protects skin from free radical damage, strengthens the skin barrier, and maintains healthy skin lipids.
- Benefits: Antioxidant protection, reduces UV damage, soothes irritation
- Synergy: Works with hyaluronic acid to enhance hydration retention
9 ingredients
Water, Propanediol, Glycerin, Sodium Hyaluronate, Hydroxyacetophenone, Sodium Citrate, Citric Acid, Ethylhexylglycerin, Tocopherol
π Where It Fits in Your Routine
Apply after cleansing and toning, before heavier serums and moisturizers. Use AM and PM daily. Best applied to damp skin.
π How to Use
Prep Your Skin
After cleansing, leave your skin slightly damp or spritz with water/toner. This gives the hyaluronic acid moisture to draw from.
Apply the Serum
Dispense 2-3 drops into your palm. Gently pat and press onto face, neck, and dΓ©colletage. A little goes a long way.
Wait 30 Seconds
Allow the serum to absorb before continuing with your routine. The lightweight formula absorbs quickly without sticky residue.
Seal with Moisturizer
Always follow with a moisturizer to lock in hydration. This prevents the HA from drawing moisture out of your skin in dry environments.
π€ Who Is It For?
β Perfect for you if:
- You want affordable, effective hydration
- You have dehydrated or dull skin
- You prefer minimal, clean formulas
- You're pregnant or breastfeeding
- You have fungal acne or acne-prone skin
- You want a lightweight base serum
- You have sensitive or reactive skin
- You need a product that layers well under makeup
β Consider alternatives if:
- You want added anti-aging peptides
- You prefer thicker, richer textures
- You need B5/panthenol for barrier repair
- You want multiple molecular weights (5+)
- You live in extremely dry climates without proper sealing
- You prefer all-in-one products
π― Skin Type Compatibility
Lightweight, water-based formula absorbs instantly without adding shine or greasiness. Won't clog pores.
Provides excellent hydration boost but requires a rich moisturizer on top for very dry skin types.
Balances hydration across different face zones without being too heavy on oily areas or too light on dry patches.
Fragrance-free, minimal 9-ingredient formula. No common irritants or allergens. Extremely gentle.
Non-comedogenic (0/5 rating), oil-free, and fungal acne safe. Won't trigger breakouts or feed malassezia.
π Results Timeline
Instant Hydration Boost
Skin feels immediately plumper, smoother, and more hydrated. The lightweight formula absorbs within 30 seconds leaving a dewy finish.
95% noticed instant hydrationImproved Skin Texture
Consistent daily use leads to noticeably softer, smoother skin. Fine dehydration lines begin to diminish as skin holds moisture better.
78% saw texture improvementPlumper, Healthier Skin
Skin appears more plump and radiant. The moisture barrier is strengthened, reducing transepidermal water loss. Makeup applies more smoothly.
85% reported healthier-looking skinLong-Term Hydration Benefits
Sustained improvement in skin hydration levels. Fine lines appear reduced, skin maintains bounce and dewiness throughout the day.
89% continued daily useβ Ratings by Platform
βοΈ Pros & Cons
β Praised
- Extremely affordable ($6 for 30ml)
- Lightweight, non-sticky formula
- Absorbs quickly (30 seconds)
- Minimal, clean 9-ingredient list
- Fragrance-free and gentle
- Layers beautifully under makeup
- Fungal acne and pregnancy safe
- Visible hydration results immediately
- Better texture than The Ordinary
- No tacky or sticky residue
β Criticized
- Only 1% HA (competitors have 2%)
- No added B5/panthenol for barrier repair
- Single HA source (vs 5-form competitors)
- May not be enough for very dry skin alone
- Small 30ml bottle used quickly
- No peptides for anti-aging
- Requires moisturizer to seal
π° Budget-Friendly Alternatives (Dupes)
Higher HA concentration (2%) with multiple molecular weights plus panthenol (B5) for barrier repair. Slightly stickier texture that some find less elegant.
Contains 2% HA plus Matrixyl 3000 peptide for added anti-aging benefits. More watery, runnier consistency. Uses up faster.
Contains ceramides and vitamin B5 for enhanced barrier repair. More occlusive formula. Better for dry skin but pricier.
Gel-like texture with added fragrance. Contains glycerin and trehalose. More expensive with similar hydration but added scent may irritate sensitive skin.
π Comparison with Competitors
Good Molecules HA Serum
$6.00The Ordinary HA 2% + B5
$9.90The Inkey List HA Serum
$8.99π¦ Storage & Shelf Life
12 months after opening
Store in a cool, dry place away from direct sunlight. No refrigeration required.
Glass dropper bottle with recyclable packaging. Protects formula from light degradation.
Yes - 30ml bottle is under 100ml TSA liquid limit. Glass bottle, handle with care.
β Frequently Asked Questions
Yes, this serum is completely safe during pregnancy and breastfeeding. Hyaluronic acid is a naturally occurring substance in the body and does not penetrate into the bloodstream when applied topically. The formula contains no retinoids, salicylic acid, hydroquinone, or any other ingredients that are contraindicated during pregnancy.
Yes, this serum is confirmed fungal acne safe. It contains no fatty acids, oils, esters, polysorbates, or fermented ingredients that feed the malassezia yeast responsible for fungal acne. The minimal 9-ingredient formula is free from all known malassezia triggers.
Yes! Hyaluronic acid is one of the most compatible skincare ingredients and can be used with virtually any other active. Apply HA serum first on damp skin, let it absorb, then follow with your retinol, vitamin C, or acid treatments. The hydration can actually help buffer potential irritation from these actives.
This serum works excellently for all skin types. It's particularly ideal for oily, combination, sensitive, and acne-prone skin due to its lightweight, non-comedogenic formula. Those with very dry skin will benefit but should pair it with a rich moisturizer to seal in the hydration.
You'll notice immediate hydration and plumping after the first use. Within 1-2 weeks of consistent daily use, skin texture improves noticeably. By 3-4 weeks, you'll see sustained improvements in skin hydration, plumpness, and overall radiance. Fine dehydration lines typically diminish within the first month.
Apply after cleansing and toning, on damp skin. This should be one of your first serum steps, before any treatment serums (vitamin C, retinol, etc.). Always follow with a moisturizer to seal in the hydration. Use both morning and evening for best results.
No, this serum has a comedogenic rating of 0/5. It will not clog pores or cause breakouts. The water-based, oil-free formula is specifically designed to be non-comedogenic and is safe for acne-prone skin. No ingredient in the formula is known to cause congestion.
The serum has a 12-month Period After Opening (PAO). Once opened, use within one year for optimal efficacy. Store in a cool, dry place away from direct sunlight. The 30ml bottle typically lasts 2-3 months with twice-daily use; the 75ml bottle lasts 5-6 months.
Verdict: Good Molecules Hyaluronic Acid Serum delivers exceptional value at just $6 for a clean, effective hydrating serum. While competitors like The Ordinary offer higher HA concentrations and added actives, this serum wins on texture, simplicity, and safety profile. The non-sticky, fast-absorbing formula is perfect for layering, and the minimal ingredient list makes it ideal for sensitive, acne-prone, or fungal acne-affected skin. Best for: Those who prioritize clean formulas, sensitive skin types, and anyone wanting a reliable daily hydrator without breaking the bank.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
A lightweight, water-based hyaluronic acid serum that draws moisture deep into the skin for long-lasting hydration. Formulated with two forms of hyaluronic acid at different molecular weights, this serum penetrates multiple layers to combat dehydration and loss of firmness, leaving skin smooth, supple, and plump.
β¨ Texture & Feel
Multi-Weight Hydration
Contains two forms of hyaluronic acid with different molecular weights to hydrate multiple skin layers simultaneously.
Minimal Formula
Only 9 carefully selected ingredients - no fillers, no irritants, no unnecessary additives. Just effective hydration.
Clean & Vegan
Free from parabens, sulfates, silicones, oils, and fragrances. Leaping Bunny certified cruelty-free and 100% vegan.
Antioxidant Protection
Formulated with Vitamin E (Tocopherol) to protect skin from free radical damage while deeply hydrating.
π‘οΈ Safety & Compatibility
Hyaluronic acid is naturally occurring in the body and considered completely safe during pregnancy and breastfeeding. No retinoids, salicylic acid, or hydroquinone.
Free from fatty acids, oils, esters, polysorbates, and fermented ingredients that feed malassezia yeast. Confirmed safe by ingredient analysis.
Fragrance-free, alcohol-free, and free from common allergens. Minimalist formula reduces risk of irritation.
Comedogenic rating of 0/5. Will not clog pores or cause breakouts. Safe for acne-prone skin.
Apply to damp skin for optimal absorption. Hyaluronic acid draws moisture from its surroundings - damp skin provides that moisture source.
Always follow with a moisturizer to seal in hydration. In dry climates, HA can pull moisture from skin if not locked in properly.
π¬ Ingredient Breakdown
π§ Sodium Hyaluronate 1% Proven
The sodium salt form of hyaluronic acid - a naturally occurring molecule that can hold up to 1000x its weight in water. This formula contains two molecular weights for multi-depth hydration.
- Mechanism: Acts as a humectant, drawing water from the environment and deeper skin layers to the surface
- Benefits: Plumps fine lines, improves skin texture, maintains moisture barrier
- Research: Clinically proven to increase skin hydration and reduce transepidermal water loss
πΏ Glycerin Proven
A powerful humectant that's naturally found in skin. Studies show glycerin may be even more effective than hyaluronic acid at maintaining skin hydration.
- 2016 Study: Found glycerin to be more effective as a humectant than both AHAs and hyaluronic acid
- Properties: Antimicrobial, antiviral, helps strengthen skin barrier
- Safety: Comedogenic rating 0, non-irritating
𧴠Propanediol Supporting
A corn-derived glycol that softens, hydrates, and smooths the skin while improving product texture and absorption.
- Function: Solvent, humectant, and texture enhancer
- Safety: Non-sensitizing, non-irritating, derived from natural sources
π‘οΈ Tocopherol (Vitamin E) Proven
A fat-soluble antioxidant that protects skin from free radical damage, strengthens the skin barrier, and maintains healthy skin lipids.
- Benefits: Antioxidant protection, reduces UV damage, soothes irritation
- Synergy: Works with hyaluronic acid to enhance hydration retention
9 ingredients
Water, Propanediol, Glycerin, Sodium Hyaluronate, Hydroxyacetophenone, Sodium Citrate, Citric Acid, Ethylhexylglycerin, Tocopherol
π Where It Fits in Your Routine
Apply after cleansing and toning, before heavier serums and moisturizers. Use AM and PM daily. Best applied to damp skin.
π How to Use
Prep Your Skin
After cleansing, leave your skin slightly damp or spritz with water/toner. This gives the hyaluronic acid moisture to draw from.
Apply the Serum
Dispense 2-3 drops into your palm. Gently pat and press onto face, neck, and dΓ©colletage. A little goes a long way.
Wait 30 Seconds
Allow the serum to absorb before continuing with your routine. The lightweight formula absorbs quickly without sticky residue.
Seal with Moisturizer
Always follow with a moisturizer to lock in hydration. This prevents the HA from drawing moisture out of your skin in dry environments.
π€ Who Is It For?
β Perfect for you if:
- You want affordable, effective hydration
- You have dehydrated or dull skin
- You prefer minimal, clean formulas
- You're pregnant or breastfeeding
- You have fungal acne or acne-prone skin
- You want a lightweight base serum
- You have sensitive or reactive skin
- You need a product that layers well under makeup
β Consider alternatives if:
- You want added anti-aging peptides
- You prefer thicker, richer textures
- You need B5/panthenol for barrier repair
- You want multiple molecular weights (5+)
- You live in extremely dry climates without proper sealing
- You prefer all-in-one products
π― Skin Type Compatibility
Lightweight, water-based formula absorbs instantly without adding shine or greasiness. Won't clog pores.
Provides excellent hydration boost but requires a rich moisturizer on top for very dry skin types.
Balances hydration across different face zones without being too heavy on oily areas or too light on dry patches.
Fragrance-free, minimal 9-ingredient formula. No common irritants or allergens. Extremely gentle.
Non-comedogenic (0/5 rating), oil-free, and fungal acne safe. Won't trigger breakouts or feed malassezia.
π Results Timeline
Instant Hydration Boost
Skin feels immediately plumper, smoother, and more hydrated. The lightweight formula absorbs within 30 seconds leaving a dewy finish.
95% noticed instant hydrationImproved Skin Texture
Consistent daily use leads to noticeably softer, smoother skin. Fine dehydration lines begin to diminish as skin holds moisture better.
78% saw texture improvementPlumper, Healthier Skin
Skin appears more plump and radiant. The moisture barrier is strengthened, reducing transepidermal water loss. Makeup applies more smoothly.
85% reported healthier-looking skinLong-Term Hydration Benefits
Sustained improvement in skin hydration levels. Fine lines appear reduced, skin maintains bounce and dewiness throughout the day.
89% continued daily useβ Ratings by Platform
βοΈ Pros & Cons
β Praised
- Extremely affordable ($6 for 30ml)
- Lightweight, non-sticky formula
- Absorbs quickly (30 seconds)
- Minimal, clean 9-ingredient list
- Fragrance-free and gentle
- Layers beautifully under makeup
- Fungal acne and pregnancy safe
- Visible hydration results immediately
- Better texture than The Ordinary
- No tacky or sticky residue
β Criticized
- Only 1% HA (competitors have 2%)
- No added B5/panthenol for barrier repair
- Single HA source (vs 5-form competitors)
- May not be enough for very dry skin alone
- Small 30ml bottle used quickly
- No peptides for anti-aging
- Requires moisturizer to seal
π° Budget-Friendly Alternatives (Dupes)
Higher HA concentration (2%) with multiple molecular weights plus panthenol (B5) for barrier repair. Slightly stickier texture that some find less elegant.
Contains 2% HA plus Matrixyl 3000 peptide for added anti-aging benefits. More watery, runnier consistency. Uses up faster.
Contains ceramides and vitamin B5 for enhanced barrier repair. More occlusive formula. Better for dry skin but pricier.
Gel-like texture with added fragrance. Contains glycerin and trehalose. More expensive with similar hydration but added scent may irritate sensitive skin.
π Comparison with Competitors
Good Molecules HA Serum
$6.00The Ordinary HA 2% + B5
$9.90The Inkey List HA Serum
$8.99π¦ Storage & Shelf Life
12 months after opening
Store in a cool, dry place away from direct sunlight. No refrigeration required.
Glass dropper bottle with recyclable packaging. Protects formula from light degradation.
Yes - 30ml bottle is under 100ml TSA liquid limit. Glass bottle, handle with care.
β Frequently Asked Questions
Yes, this serum is completely safe during pregnancy and breastfeeding. Hyaluronic acid is a naturally occurring substance in the body and does not penetrate into the bloodstream when applied topically. The formula contains no retinoids, salicylic acid, hydroquinone, or any other ingredients that are contraindicated during pregnancy.
Yes, this serum is confirmed fungal acne safe. It contains no fatty acids, oils, esters, polysorbates, or fermented ingredients that feed the malassezia yeast responsible for fungal acne. The minimal 9-ingredient formula is free from all known malassezia triggers.
Yes! Hyaluronic acid is one of the most compatible skincare ingredients and can be used with virtually any other active. Apply HA serum first on damp skin, let it absorb, then follow with your retinol, vitamin C, or acid treatments. The hydration can actually help buffer potential irritation from these actives.
This serum works excellently for all skin types. It's particularly ideal for oily, combination, sensitive, and acne-prone skin due to its lightweight, non-comedogenic formula. Those with very dry skin will benefit but should pair it with a rich moisturizer to seal in the hydration.
You'll notice immediate hydration and plumping after the first use. Within 1-2 weeks of consistent daily use, skin texture improves noticeably. By 3-4 weeks, you'll see sustained improvements in skin hydration, plumpness, and overall radiance. Fine dehydration lines typically diminish within the first month.
Apply after cleansing and toning, on damp skin. This should be one of your first serum steps, before any treatment serums (vitamin C, retinol, etc.). Always follow with a moisturizer to seal in the hydration. Use both morning and evening for best results.
No, this serum has a comedogenic rating of 0/5. It will not clog pores or cause breakouts. The water-based, oil-free formula is specifically designed to be non-comedogenic and is safe for acne-prone skin. No ingredient in the formula is known to cause congestion.
The serum has a 12-month Period After Opening (PAO). Once opened, use within one year for optimal efficacy. Store in a cool, dry place away from direct sunlight. The 30ml bottle typically lasts 2-3 months with twice-daily use; the 75ml bottle lasts 5-6 months.
Verdict: Good Molecules Hyaluronic Acid Serum delivers exceptional value at just $6 for a clean, effective hydrating serum. While competitors like The Ordinary offer higher HA concentrations and added actives, this serum wins on texture, simplicity, and safety profile. The non-sticky, fast-absorbing formula is perfect for layering, and the minimal ingredient list makes it ideal for sensitive, acne-prone, or fungal acne-affected skin. Best for: Those who prioritize clean formulas, sensitive skin types, and anyone wanting a reliable daily hydrator without breaking the bank.
