Hanasui Vitamin C + Collagen Serum Versus Hada Labo H.A. Supreme Vita Brightening Serum

Hanasui Vitamin C + Collagen Serum Versus Hada Labo H.A. Supreme Vita Brightening Serum

This brightening serum is formulated around Niacinamide and Sodium Ascorbyl Phosphate to brighten dull-looking skin and soften the look of wrinkles.

This brightening serum is formulated around Niacinamide and 3-O-Ethyl Ascorbic Acid to brighten dull-looking skin and fade the look of dark spots.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Butylene Glycol

Niacinamide

Sodium Ascorbyl Phosphate

Betaine

Biosaccharide Gum-1

Ethoxydiglycol

Phenoxyethanol

Collagen

Carbomer

Allantoin

Xanthan Gum

Parfum

Triethylene Glycol

Aminomethyl Propanol

Sodium Hyaluronate

Tetrasodium EDTA

Hydrogenated Lecithin

Glycine Soja Sterols

Sodium Polygamma-Glutamate

2-Aminobutanol

Chlorphenesin

Water, Glycerin, Butylene Glycol, Niacinamide, Sodium Ascorbyl Phosphate, Betaine, Biosaccharide Gum-1, Ethoxydiglycol, Phenoxyethanol, Collagen, Carbomer, Allantoin, Xanthan Gum, Parfum, Triethylene Glycol, Aminomethyl Propanol, Sodium Hyaluronate, Tetrasodium EDTA, Hydrogenated Lecithin, Glycine Soja Sterols, Sodium Polygamma-Glutamate, 2-Aminobutanol, Chlorphenesin

Propanediol

Methyl Gluceth-20

1,2-Hexanediol

3-O-Ethyl Ascorbic Acid

Polyacrylate Crosspolymer-6

Hydroxyacetophenone

Hydroxypropyltrimonium Hyaluronate

Hydrolyzed Viola Tricolor Extract

Hydrolyzed Malt Extract

Hydrolyzed Gardenia Florida Extract

Ethylhexylglycerin

Disodium EDTA

Cellulose Gum

Hydrolyzed Hyaluronic Acid

Hyaluronic Acid

Citrus Junos Seed Extract

Portulaca Oleracea Extract

Tocopherol

Thiamine Hcl

Riboflavin

Retinyl Palmitate

Pantothenic Acid

Niacin

Folic Acid

Carnitine Hcl

Biotin

Ascorbic Acid

Saccharide Isomerate

Pancratium Maritimum Extract

Alaria Esculenta Extract

Kaempferia Galanga Root Extract

Water, Glycerin, Niacinamide, Propanediol, Methyl Gluceth-20, Butylene Glycol, 1,2-Hexanediol, 3-O-Ethyl Ascorbic Acid, Polyacrylate Crosspolymer-6, Hydroxyacetophenone, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Viola Tricolor Extract, Hydrolyzed Malt Extract, Hydrolyzed Gardenia Florida Extract, Ethylhexylglycerin, Disodium EDTA, Cellulose Gum, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Hyaluronic Acid, Citrus Junos Seed Extract, Portulaca Oleracea Extract, Tocopherol, Thiamine Hcl, Riboflavin, Retinyl Palmitate, Pantothenic Acid, Niacin, Folic Acid, Carnitine Hcl, Biotin, Ascorbic Acid, Saccharide Isomerate, Pancratium Maritimum Extract, Alaria Esculenta Extract, Kaempferia Galanga Root Extract

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.

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.

Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.

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.

Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.

And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.

You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.

In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.

If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.

When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.

When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.

In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).

Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.

Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.

The type of niacinamide used in skincare is synthetically created.

Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.

In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.

Interestingly, the size of the molecule affects its behavior:

Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.

Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.

You'll typically see concentrations between 0.1-2% for this ingredient.

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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