It has ingredients that are good for fighting acne, anti aging, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture

Free From

It doesn't contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates

Fun facts

Principia is from Brazil. This product is used in 18 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.

Ingredient List (16)

Water, Retinol, Polyacrylate Crosspolymer-6, Sodium Gluconate, Propanediol, C15-19 Alkane, Arachidyl Alcohol, Behenyl Alcohol, Arachidyl Glucoside, Tocopheryl Acetate, Polysorbate 20, BHA, Sodium Diethylenetriamine Pentamethylene Phosphonate, Sodium Gluceptate, Phenoxyethanol, Caprylyl Glycol

You should know

Here's our breakdown of the notable ingredients, benefits, and concerns we determined from the ingredients in this product. Click any item to learn more.

Notable Ingredients

Retinoid

Vitamin E

Benefits

Good For Oily Skin

Skin Texture

Reduces Large Pores

Anti-Aging

Dark Spots

Scar Healing

Acne Fighting

Brightening (2)

Concerns

Drying

Irritating

Eczema

Ingredient Info

Click any item below to learn more and view relevant ingredients.

alcohol-free

silicon-free

fragrance-free

sulfate-free

paraben-free

oil-free

fungal-acne safe

reef-safe

eu-allergen-free

vegan

cruelty-free

Ingredients Overview

Here's our quick-to-read summary of the ingredients in this product. Keep scrolling if you'd like to learn more about what each ingredient does!

Ingredient

Com. / Irr. Rating

Features

Skin Conditioning, Solvent

Skin Conditioning

Emulsion Stabilising

Skin Conditioning

Solvent

Emollient, Emulsion Stabilising

Emulsifying

Antioxidant, Skin Conditioning

0 / 0

Emulsifying

0 / 0

Antioxidant, Masking

Preservative

Emollient, Humectant, Skin Conditioning

Ingredients Explained

This product contains 16 ingredients. Click on any ingredient to learn more about it

Water

What it does: Skin Conditioning, Solvent

Community Rating: Loved

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. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water

Retinol

What it does: Skin Conditioning

Community Rating: Loved

Retinol is a form of Vitamin A and proven to help with anti-aging.

It promotes collagen production, increases new cell turnoever, and protects your skin as an antioxidant.

Retinol boosts collagen production and increases cell turnover. This makes retinol effective in removing wrinkles, fading dark spots, and reducing the appearance of pores.

Retinol is less effective when exposed to sun. Be sure to look for appropriate packaging to keep your retinol potent.

Using retinol and retinoids will increase sun-sensitivity in the first few weeks of use. Though studies show retinoids increase your skin's natural SPF with continuous use, it is best to always wear sunscreen and sun-protection.

We recommend speaking with a medical professional about using this ingredient during pregnancy.

Retinol may cause irritation in some people, so be sure to patch test. Experts recommend 'ramping up' retinol use: start using this ingredient once a week and work up to using it daily.

Read about Tretinoin

Learn more about Retinol

Polyacrylate Crosspolymer-6

What it does: Emulsion Stabilising

Community Rating: Disliked

Polyacrylate Crosspolymer-6 is a texture enhancer and pH adjuster.

It is be used to thicken water-based products and create a gel-texture with a velvet feel.

One manufacturer claims this ingredient to have a pH range of 2-8 and to be biodegradable.

Learn more about Polyacrylate Crosspolymer-6

Sodium Gluconate

What it does: Skin Conditioning

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.

Chelating agents help neutralize unwanted metals from affecting the formulation.

Sodium gluconate is water-soluble.

Learn more about Sodium Gluconate

Propanediol

What it does: Solvent

Community Rating: Liked

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

Propanediol is not likely to cause sensitivity and considered safe to use.

It is derived from corn or petroleum with a clear color and no scent.

Learn more about Propanediol

C15-19 Alkane

What it does: Solvent

C15-19 alkane is a mixture of alkanes. Alkanes are hydrocarbons with carbon atoms held together by single bonds.

It is a synthetically created solvent and emollient often used to replace silicones or mineral oil. As an emollient, C15-19 Alkane helps soften and soothe the skin. Emollients create a barrier to trap moisture inside.

C15-19 Alkane is often used with mineral UV filters such as titanium dioxidide and zinc oxide. It helps these UV filter ingredients be more spreadable.

C15-19 Alkane is biodegradable.

Learn more about C15-19 Alkane

Arachidyl Alcohol

What it does: Emollient, Emulsion Stabilising

Community Rating: Very Disliked

We don't have a description for Arachidyl Alcohol.

Behenyl Alcohol

What it does: Emollient, Emulsion Stabilising

Community Rating: Disliked

A type of fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as traditional alcohols.

Emollients help keep your skin soft and hydrated by creating a film that traps moisture in.

Behenyl Alcohol is usually derived from the fats in vegetable oils.

In 2000, Behenyl Alcohol was approved by the US as medicine to reduce the duration of cold sores.

Learn more about Behenyl Alcohol

Arachidyl Glucoside

What it does: Emulsifying

Community Rating: Disliked

We don't have a description for Arachidyl Glucoside.

Tocopheryl Acetate

What it does: Antioxidant, Skin Conditioning

Community Rating: Liked

Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.

One study found using Tocopheryl Acetate with Vitamin C decreased the number of sunburned cells.

Tocopheryl Acetate is commonly found in both skincare and dietary supplements.

Learn more about Tocopheryl Acetate

Polysorbate 20

What it does: Emulsifying

Community Rating: Very Disliked

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.

Polysorbate 20 also adds scent to a product. Since it is made using sorbitol, it has a sweet scent. Sorbitol can also be found in fruits such as apples and peaches.

The lauric acid used to create Polysorbate 20 is often derived from coconuts.

Polysorbate 20 may not be fungal acne safe.

Learn more about Polysorbate 20

BHA

What it does: Antioxidant, Masking

Community Rating: Liked

This BHA stands for butylated hydroxyanisole. If you are looking for the beta-hydroxy acid, aka as Salicylic Acid, click here.

In cosmetics, butylated hydroxyanisole is used as a perservative. It also has antioxidant properties. The concentrations usually used in skincare are low and do not penetrate through skin.

However, it is considered a carcinogen when ingested.

Butylated Hydroxyanisole is a synthetic and waxy petrochemical. It is used as a preservative in foods and cosmetics.

Learn more about BHA

Sodium Diethylenetriamine Pentamethylene Phosphonate

What it does:

We don't have a description for Sodium Diethylenetriamine Pentamethylene Phosphonate.

Sodium Gluceptate

What it does:

We don't have a description for Sodium Gluceptate.

Phenoxyethanol

What it does: Preservative

Community Rating: Very Disliked

Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent germ and 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.

Caprylyl Glycol

What it does: Emollient, Humectant, Skin Conditioning

Community Rating: Liked

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.

Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.

This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.

Learn more about Caprylyl Glycol

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