maru.derm Vitamin C Daily Glow Serum Versus HYGGEE Natural Repair Serum

maru.derm Vitamin C Daily Glow Serum Versus HYGGEE Natural Repair Serum

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

This barrier-repair serum is formulated around Panax Ginseng Root Extract and Niacinamide to strengthen the skin barrier and calm redness.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Sodium Ascorbyl Phosphate

Niacinamide

Propylene Glycol

Pisum Sativum Peptide

Panthenol

Arginine

Aspartic Acid

Glycine

Alanine

Serine

Valine

Proline

Threonine

Isoleucine

Histidine

Phenylalanine

Hydroxyethylcellulose

Sodium Benzoate

Potassium Sorbate

Water, Sodium Ascorbyl Phosphate, Niacinamide, Propylene Glycol, Pisum Sativum Peptide, Panthenol, Arginine, Aspartic Acid, Glycine, Alanine, Serine, Valine, Proline, Threonine, Isoleucine, Histidine, Phenylalanine, Hydroxyethylcellulose, Sodium Benzoate, Potassium Sorbate

Panax Ginseng Root Extract

Glycerin

Propanediol

1,2-Hexanediol

Butylene Glycol

Simethicone

Gelidium Cartilagineum Extract

Laminaria Japonica Extract

Hizikia Fusiforme Extract

Ascophyllum Nodosum Extract

Ascorbic Acid Polypeptide

Lactobacillus Ferment

Glycyrrhiza Glabra Root Extract

Dextrin

Centella Asiatica Extract

Scutellaria Baicalensis Root Extract

Polygonum Cuspidatum Root Extract

Glutamic Acid

Sesamum Indicum Seed Extract

Sophora Flavescens Root Extract

Camellia Sinensis Leaf Extract

Cimicifuga Racemosa Root Extract

Morus Alba Bark Extract

Paeonia Lactiflora Root Extract

Phellinus Linteus Extract

Angelica Gigas Root Extract

Polygonum Multiflorum Root Extract

Leucine

Rosmarinus Officinalis Leaf Extract

Chamomilla Recutita Flower Extract

Paeonia Suffruticosa Root Extract

Lysine

Tyrosine

Pancratium Maritimum Extract

Methionine

Cysteine

Cellulose Gum

Ammonium Acryloyldimethyltaurate/Vp Copolymer

Sodium Polyacryloyldimethyl Taurate

Hydrogenated Polydecene

Ethylhexylglycerin

Adenosine

Trideceth-10

Theobroma Cacao Extract

Disodium EDTA

T-Butyl Alcohol

Carbomer

Polyglutamic Acid

Pvm/Ma Copolymer

Betaine

Panax Ginseng Root Extract, Glycerin, Propanediol, 1,2-Hexanediol, Butylene Glycol, Niacinamide, Water, Simethicone, Panthenol, Gelidium Cartilagineum Extract, Laminaria Japonica Extract, Hizikia Fusiforme Extract, Ascophyllum Nodosum Extract, Ascorbic Acid Polypeptide, Lactobacillus Ferment, Glycyrrhiza Glabra Root Extract, Dextrin, Centella Asiatica Extract, Scutellaria Baicalensis Root Extract, Glycine, Polygonum Cuspidatum Root Extract, Serine, Glutamic Acid, Sesamum Indicum Seed Extract, Sophora Flavescens Root Extract, Camellia Sinensis Leaf Extract, Cimicifuga Racemosa Root Extract, Morus Alba Bark Extract, Paeonia Lactiflora Root Extract, Phellinus Linteus Extract, Angelica Gigas Root Extract, Polygonum Multiflorum Root Extract, Aspartic Acid, Leucine, Rosmarinus Officinalis Leaf Extract, Chamomilla Recutita Flower Extract, Paeonia Suffruticosa Root Extract, Alanine, Lysine, Arginine, Tyrosine, Phenylalanine, Valine, Pancratium Maritimum Extract, Threonine, Proline, Isoleucine, Histidine, Methionine, Cysteine, Cellulose Gum, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Sodium Polyacryloyldimethyl Taurate, Hydrogenated Polydecene, Ethylhexylglycerin, Adenosine, Trideceth-10, Theobroma Cacao Extract, Disodium EDTA, T-Butyl Alcohol, Carbomer, Polyglutamic Acid, Pvm/Ma Copolymer, Betaine

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.

Alanine is an amino acid and is already found in the human body. Our skin uses alanine to build collagen, elastin, and keratin.

Arginine is a semi-essential amino acid. This just means our bodies can product a bit on its own, but sometimes needs a little boost from food sources.

It is a part of your skin's natural moisturizing factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.

Here's an interesting thing about Arginine: your skin converts it into urea through the Krebs-Henseleit urea cycle. Urea is one of the most effective humectants your skin naturally produces.

A clinical study showed applying 2.5% arginine hydrochloride to atopic dermatitis skin showed significant urea levels in the stratum corneum and improved moisture in just four weeks.

Arginine is also a precursor to nitric oxide; nitric oxide improves microcirculation and supports wound healing and collagen synthesis.

One study found that an amino acid complex containing Arginine reduced skin irritation, improved hydration, and accelerated skin repair in clinical / in-vivo studies.

Arginine itself is an amino acid and not a fatty acid, oil, or ester. On its own, it's not a direct food source for Malassezia, or the yeast that causes fungal acne.

Aspartic Acid is an amino acid that our bodies produce naturally. It is an antioxidant.

Our body uses Aspartic Acid to help build collagen and elastin. It also plays a role in hydrating skin.

Glycine is the smallest amino acid and a key building block of collagen. It's part if your skin's Natural Moisturizing Factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.

A study from 2022 found that an amino acid complex featuring taurine, arginine, and glycine significantly reduced skin irritation, improved redness, and accelerated the skin repair process.

Histidine is a semi-essential amino acid used by our bodies to create protein. It has humectant and skin conditioning properties.

Our bodies use histidine to create filaggrin - filaggrin is a structural protein that the skin uses in maintaining skin barrier.

One study found histidine and carnosine to be a dynamic duo for your skin:

Oral histidine has also been found to help with filaggrin-deficit skin disorders such as atopic dermatitis.

Why is it considered a semi-essential amino acid? This is because adults are able to create it but children must get it from their diet.

Isoleucine is an amino acid that helps reinforce our skin barrier. This amino acid plays a role in creating protein for the body.

Fun fact: Isoleucine is found in meat, fish, dairy, legumes, and nuts.

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.

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

Phenylalanine is an amino acid. It is a skin soothing and hydrating ingredient. Amino acids play a crucial role in wound healing and skin hydration.

This ingredient is also used to help even out skin tone due to its ability to disrupt the melanin production process.

Two structures of phenylalanine exist: L-phenylalanine and D-phenylalanine. L-phenylalanine is essential, this means our bodies cannot produce it naturally and we must get it from foods. Our bodies convert D-phenylalanine to neurotransmitters, and D-phenylalanine is found in our bodies naturally.

Some foods that contain L-phenylalanine include eggs, soybeans, beef, milk.

Proline is a non-essential amino acid, meaning your body can make it on its own. In skincare, it is a skin conditioning ingredient that keeps skin soft and hydrated.

It makes up about 23% of the collagen molecule (collagen is the protein responsible for keeping your skin firm) and is involved in your skin's natural hyaluronic acid production. When applied topically, proline can penetrate the skin fairly well due to its small molecular size.

Reviews of this ingredient have found it to be neither a dermal irritant nor a sensitizer.

Fun fact: Proline can be found in protein-rich foods like meat, fish, eggs, and dairy.

Serine is a non-essential amino acid (your body makes it on its own!). It is a major player in your skin's natural moisturizing factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.

Serine is one of your NMF's most abundant components that works as a skin-identical humectant. Its hydroxyl group grabs onto water molecules to boost hydration without any heaviness or occlusion.

Research on a hydrogel with serine confirmed this serine got delivered to your stratum corneum and demonstrated enhanced skin moisturization.

Interestingly serine also helps your skin produce filaggrin, a protein that keeps your skin barrier strong and used to create collagen.

Threonine is an amino-acid. It helps hydrate the skin and has antioxidant benefits.

Our skin uses threonine for creating collagen and elastin. Humans are not able to create threonine and must get it through eating foods such as fish, lentils, poultry, sesame seeds, and more.

Valine is one of the essential amino acids (meaning your body can't make it on its own and has to get it from food).

In skincare, it's usually synthetically-made or pulled from plant proteins like soy.

It's one of the small building blocks that make up your skin's natural moisturizing factor (NMF), or the built-in system that helps skin hold onto water. So its main job in a formula is to give the skin gentle hydration and help it feel more comfortable.

Typical amounts are very tiny: roughly 0.00004%-0.5% in leave on products and up to 1% in rinse-off ones.

The Cosmetic Ingredient Review panel has looked at this ingredient and found no evidence of it being a skin irritant or allergen at cosmetic levels.

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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