La Mer The Treatment Lotion Versus La Mer The Essential Tonic

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.

Caffeine is most associated with coffee, tea, and cacao. In skincare, it helps with calming inflammation and is rich in antioxidants.

While caffeine is used to treat cellulite and and dark circles, further studies are needed to prove this. It has been believed to help with these skin conditions due to its ability to dilate blood vessels and increase blood flow.

This ingredient is calcium salt of gluconic acid. It is a humectant, meaning it attracts water to your skin.

Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.

It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.

Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.

Chlorphenesin is a biocide. This means it is able to help fight the microorganisms on our skin. It is also able to fight odor-releasing bacteria.

Citrus Aurantifolia Peel Extract is a fragrance.

This ingredient is a copper salt known for its wound healing properties.

Our bodies use copper to help stabilize our skin's collagen and elastin. Its also an essential for superoxide dismutase, an enzyme with strong antioxidant properties.

Disodium EDTA plays a role in making products more stable by aiding other preservatives.

It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.

This oil is derived from the leaves of Eucalyptus Globulus, a type of Eucalyptus tree native to Australia.

Though this oil shows antibacterial and antioxidant activity, it is also a known skin-irritant due to its fragrance components.

Glycereth-26 is a synthetic ingredient and polyethylene glycol ether of Glycerin. Glycerin is already naturally found in your skin and helps keep your skin moisturized.

It is a humectant and helps add texture to products. It can make your product thicker.

Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.

A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.

Helianthus Annuus Seedcake is an exfoliant and isn't fungal acne safe.

Lactobacillus Ferment is created by fermenting the Lactobacillus bacteria. It helps keep our skin's natural barrier and microbiome healthy.

Studies show lactobacillus ferment to be effective at repairing the skin barrier. Having a healthy skin barrier helps keep your skin healthy and hydrated. It also protects against bad bacteria.

Laminaria Digitata Extract comes from the dark brown seaweed, Laminaria Digitata. It is a potent antioxidant, which also provides soothing and hydrating benefits.

Many studies show the antioxidant components of Laminaria Digitata to help with anti-inflammation.

We don't have a description for Laminaria Saccharina Extract yet.

Linalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.

Like Limonene, this ingredient oxidizes when exposed to air. Oxidized linalool can cause allergies and skin sensitivity.

We don't have a description for Magnesium Gluconate yet.

We don't have a description for Medicago Sativa Seed Powder yet.

Methyl Gluceth-20 is a humectant. Humectants help draw moisture from the air to your skin.

It is created by combining polyethylene glycol with glucose.

Niacin is the other form of B3, with the other being niacinamide. The two have similar skin benefits: reducing inflammation, strengthening the skin barrier, and fading dark spots.

Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.

Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.

PEG-8 is a synthetic polymer used as a humectant and solvent.

This ingredient is able to help dissolve active ingredients, including water. This gives it humectant properties.

Phenoxyethanol 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.

Polyquaternium-51 is a polymer salt. It helps hydrate the skin by creating a film on top. This film traps moisture in, keeping your skin soft and hydrated.

Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.

As a surfactant, it helps collect dirt and oils for washing. Emulsifiers prevent oils and water from separating.

Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.

This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.

Prunus Amygdalus Dulcis Seed Meal comes from the Sweet Almond tree. This sweet almond seed meal is the residue from expressing almond oil.

As an abrasive, it can help exfoliate the top layer of skin.

Sesame oil comes from sesame seeds. Sesame oil is rich in fatty acids and Vitamin E.

It has antibacterial, antioxidant, and anti-inflammatory properties. The phenolic compounds of this ingredient (including vitamin E) give it these properties.

We don't have a description for Sesamum Indicum Seed Powder yet.

This is the synthetic salt of gluconic acid, a form of PHA and mild exfoliant.

It is mainly used to stabilize oil and butter formulations from going bad. Sodium gluconate is a humectant, pH regulator, and chelating agent.

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.

Sodium PCA is the sodium salt of pyroglutamic acid. It is naturally occurring in our skin's natural moisturizing factors where it works to maintain hydration.

The PCA stands for pyrrolidone carboxylic acid, a natural amino acid derivative.

Sucrose is a natural sugar found in fruits, vegetables, and nuts. It is the main constituent of white sugar.

In skincare, sucrose is a humectant and can be a mild exfoliant.

Tocopheryl Succinate is an antioxidant.

Trehalose is a disaccharide made of two glucose molecules (glucose is sugar!). Trehalose is used to help moisturize skin. It also has antioxidant properties.

As a humectant, trehalose helps draw moisture from the air to your skin. This helps keep your skin hydrated.

Triacetin comes from glycerin and acetic acid. It has antimicrobial properties.

Due to its ability to kill off microorganisms, it can help reduce odor caused by bacteria. Hence, it is a masking ingredient.

Urea is also called carbamide and is the diamide of carbonic acid. In cosmetics, urea is used to hydrate the skin. It also provides exfoliation in higher concentrations.

As a humectant, urea helps draw moisture from the air and from deep within the skin. This helps hydrate your skin. Studies show urea is an effective moisturizer for dry skin conditions. 40% urea is typical in medications for treating eczema and other skin conditions.

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.

Yeast extract is a silky, clear liquid derived from yeast (usually Saccharomyces cerevisiae or Torula yeast).

This ingredient has plenty of skin benefits:

Zinc gluconate has antibacterial and wound healing properties. It is particularly effective against fighting inflammatory acne.

This ingredient is the zinc salt of the PHA gluconic acid. PHAs are gentle cousins to AHAs.