BYOMA Hydrating Serum Versus Good Molecules Hyaluronic Acid Serum

BYOMA Hydrating Serum Versus Good Molecules Hyaluronic Acid Serum

This hydrating serum is formulated around Squalane and Ceramide NP to hydrate skin and strengthen the skin barrier.

This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin.

What's inside

Key Ingredients

Benefits

Concerns

No concerns

Ingredients Side-by-side

Water

Glycerin

Butylene Glycol

Squalane

Sodium Stearoyl Glutamate

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Dipropylene Glycol

Ceramide NP

Caprylic/Capric Triglyceride

Cholesterol

Phytosphingosine

Stearic Acid

Oleic Acid

Hydroxyacetophenone

Polyglyceryl-4 Oleate

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Hydrogenated Lecithin

Caprylyl Glycol

Glyceryl Oleate

Lactic Acid

Ethylhexylglycerin

Hydrogenated Rapeseed Alcohol

Sorbitan Isostearate

Sodium Phytate

Xanthan Gum

Dipotassium Glycyrrhizate

Tocopherol

Caprylhydroxamic Acid

Water, Glycerin, Butylene Glycol, Squalane, Sodium Stearoyl Glutamate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Dipropylene Glycol, Ceramide NP, Caprylic/Capric Triglyceride, Cholesterol, Phytosphingosine, Stearic Acid, Oleic Acid, Hydroxyacetophenone, Polyglyceryl-4 Oleate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydrogenated Lecithin, Caprylyl Glycol, Glyceryl Oleate, Lactic Acid, Ethylhexylglycerin, Hydrogenated Rapeseed Alcohol, Sorbitan Isostearate, Sodium Phytate, Xanthan Gum, Dipotassium Glycyrrhizate, Tocopherol, Caprylhydroxamic Acid

Propanediol

Sodium Hyaluronate

Sodium Citrate

Citric Acid

Water, Propanediol, Glycerin, Sodium Hyaluronate, Hydroxyacetophenone, Sodium Citrate, Citric Acid, Ethylhexylglycerin, Tocopherol

Reviews

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:

The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.

Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.

Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.

Topically, glycerin does several things at once:

Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.

Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.

This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.

Just know very high concentrations (>40%) can feel tacky in low humidity.

Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.

Hydroxyacetophenone is a small phenolic molecule that earns its place in a formulas as an antioxidant and preservative booster.

As a phenol, it is able to neutralize free radicals to protect both the product and the skin from oxidative stress.

Though it can't kill microbes on its own, it works as a good supporting agent when combined with other preservatives like Phenoxyethanol or 1,2-Hexanediol.

This ingredient naturally occurs as piceol in Norwegian spruce needles (~0.4-1.1% dry weight and in cloudberries). Though the cosmetic-grade material is synthesized for purity and consistency.

You'll usually see it used at low levels and suppliers recommend up to 1% added to a water phase.

Safety testing was done at concentrations like 0.05% in SPF products and 0.5% in a Human Repeated Insult Patch Test. The safety evidence is assuring; this ingredient is safe for cosmetics in current use and also holds safety status as a food flavoring as well.

An honest caveat: the "soothing" and "anti-inflammatory" claims come mostly from supplier marketing rather than published clinical trials. The Cosmetic Ingredient Review's own literature search found no useful efficacy studies on this ingredient.

So the antioxidant and preservative-boosting roles are the well supported ones while the calming benefit is plausible but thinly evidenced.

Overall, this is a well-tolerated, low-irritation multitasker that quietly helps a formula stay fresh and stable.

Tocopherol is a fat-soluble antioxidant known as Vitamin E.

You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.

Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.

It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.

This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.

This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.

In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.

Concentrations usually range from 0.1-1% in most leave-on products.

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!

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