Overview
What it is
Serum with 19 ingredients that contains Vitamin C
Cool Features
It is cruelty-free, fungal acne (malassezia) safe, and reef safe
Suited For
It has ingredients that are good for anti aging, dry skin, brightening skin, reducing pores and better texture
Free From
It doesn't contain any harsh alcohols, common allergens, oils, parabens, silicones or sulfates
Fun facts
Lejeu is from Japan. This product is used in 1 routines created by our community.
We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.
What's inside (and what isn't)
Ingredients List
Dive into the full list of ingredients.
Placental Extract
Pentylene Glycol
Skin ConditioningHuman Adipose Stromal Cell Exosomes
Skin ConditioningTrisodium Ascorbyl Palmitate Phosphate
Antioxidant3-O-Ethyl Ascorbic Acid
Skin ConditioningOryza Sativa Bran Water
MaskingSaccharomyces Ferment Lysate Filtrate
Skin ConditioningYeast Beta-Glucan
Skin ConditioningTremella Fuciformis Polysaccharide
Emulsion StabilisingCaesalpinia Spinosa Fruit Extract
Skin ProtectingKappaphycus Alvarezii Extract
Skin ConditioningHydrolyzed Collagen
Emollient1,2-Hexanediol
Skin ConditioningMethionine
Skin ConditioningButylene Glycol
HumectantSodium Citrate
BufferingCitric Acid
BufferingWater
Skin ConditioningPhenoxyethanol
PreservativePlacental Extract, Pentylene Glycol, Human Adipose Stromal Cell Exosomes, Trisodium Ascorbyl Palmitate Phosphate, 3-O-Ethyl Ascorbic Acid, Oryza Sativa Bran Water, Saccharomyces Ferment Lysate Filtrate, Yeast Beta-Glucan, Tremella Fuciformis Polysaccharide, Caesalpinia Spinosa Fruit Extract, Kappaphycus Alvarezii Extract, Hydrolyzed Collagen, 1,2-Hexanediol, Methionine, Butylene Glycol, Sodium Citrate, Citric Acid, Water, Phenoxyethanol
Key Ingredients
Benefits
Ingredients Explained
We don't have a description for Placental Extract yet.
Pentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolWe don't have a description for Human Adipose Stromal Cell Exosomes yet.
Trisodium Ascorbyl Palmitate Phosphate is an antioxidant. It can help to reduce redness, improve skin texture, reduce the effects of aging, and brighten skin.
You might know this ingredient as Ethyl Ascorbic Acid, a more stable version of ascorbic acid.
Like other types of vitamin C, this ingredient has many benefits including reducing wrinkles, skin soothing, dark spot fading, and fighting against free radicals.
3-O-Ethyl Ascorbic Acid interferes with the process of skin darkening, helping to reduce hyperpigmentation. It also encourages the skin to produce more collagen.
Once applied, 3-O-Ethyl Ascorbic Acid is converted to Vitamin C deeper in the skin's layers. This process is slow but makes this ingredient more tolerable for skin.
The optimum pH range for this ingredient is 4 - 5.5
Learn more about 3-O-Ethyl Ascorbic AcidOryza Sativa Bran Water comes from the outer layer of a rice kernel. It is a byproduct of milling rice, or the operation to produce a whole grain rice product.
According to INCI, this ingredient is used for masking and perfuming.
Masking ingredients are used to obscure or block properties of other ingredients. They are commonly used to block the scent of a product.
Peruming ingredients help give products a scent and can be natural or synthetically created.
Learn more about Oryza Sativa Bran WaterSaccharomyces Ferment Lysate Filtrate is created from the fermentation of the yeast known as Saccharomyces.
Lysate is formed from the lysis of cells, and lysis means to disintegrate a cell.
We don't have a description for Yeast Beta-Glucan yet.
Tremella Fuciformis Polysaccharide are the sugars from the snow mushroom.
Snow mushroom is rich in polysaccharides, giving it moisturizing benefits. As a humectant, snow mushroom helps draw moisture from the air to the skin. Polysaccharides are able to mimic our skin's natural carbohydrates to help the skin retain water.
We don't have a description for Caesalpinia Spinosa Fruit Extract yet.
We don't have a description for Kappaphycus Alvarezii Extract yet.
Hydrolyzed collagen has a misleading name because it is actually a mixture of various proteins/peptides. This ingredient has skin hydrating properties.
Collagen is the most abundant type of structural protein found in your body. In your skin, it is responsible for keeping it firm and youthful.
Hydrolyzed Collagen is created by breaking up proteins into smaller peptide bonds. These peptides act as humectants and emollients.
Humectants are great at holding onto water, keeping skin hydrated. Emollients create a thin barrier on the skin to prevent moisture from escaping.
There is ongoing debate about whether hydrolyzed collagen works because it increases skin hydration. Skin hydration is also linked to elasticity and the appearance of wrinkles.
Collagen or peptide ingredients can be used in the morning or night. They will not increase sun sensitivity, but you should always wear sunscreen during the day.
According to a manufacturer, this ingredient is a great hair conditioner as well.
This ingredient can be extracted from different sources, including:
Vegan collagen is derived from yeast, bacteria, or plant sources. Vegan collagen would go by a different INCI name, such as hydrolyzed soy protein.
The results are varied.
A study from 2021 found hydrolyzed collagen increased elasticity and improved wrinkles in 1,125 participants between age 20 and 70. Another study found increased skin thickness in participants between the ages of 45 to 59.
However, It is difficult to prove that oral collagen will end up working on your skin. Many of the studies using hydrolyzed collagen also add several vitamins and nutrients into the test mixture as well.
Further studies are needed at this time.
Learn more about Hydrolyzed Collagen1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservatives
Methionine is an essential amino acid. It is a conditioning agent and commonly found in both skin and hair products.
This amino acid is a precursor to glutathione, a powerful antioxidant.
Fun fact: Methionine can be found in meat, fish, and dairy. It cannot be naturally produce and requires dietary intake.
Learn more about MethionineButylene 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.
Learn more about Butylene GlycolSodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.
Its main functions are to maintain the pH of a product and neutralize metal ions.
The acidity of our skin is maintained by our glands and skin biome; normal pH level of skin is slightly acidic (~4.75-5.5).
Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.
Learn more about Sodium CitrateCitric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
Read more about some other popular AHA's here:
Learn more about Citric AcidWater. 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. Stay hydrated!
Learn more about WaterPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Reviews
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Where it's from
Lejeu is a Japanese brand
We're dedicated to providing you with the most up-to-date and science-backed ingredient info out there.
The data we've presented on this page has been verified by a member of the SkinSort Team.
Read more about us· Updated March 18, 2025 • Added by natalliabialevich