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Prescription
Swiss Switzerland
French France

What's inside

What's inside

Key Ingredients

Benefits

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Ingredients Side-by-side

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Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

BHA
Antioxidant, Masking

The ingredient "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.

It is only 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

Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.

This ingredient mainly works behind the scenes and helps with:

On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.

One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).

Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.

You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.

Learn more about Disodium EDTA
Humectant, Masking, Skin Conditioning

Sorbitol is a sugar alcohol. It is a hydrating and moisturizing agent created from the reduction process of glucose.

Most sorbitol is usually made from potato starch. It is also found in fruits such as apples and pears.

As a humectant, Sorbitol helps draw water to the skin. This helps keep the skin hydrated. Sorbitol also helps create a thicker texture in products. You might find sorbitol in your toothpaste and other gels.

It is a non-irritating ingredient that is great for those with dry skin.

Sorbitol is a prebiotic. It helps promote the growth of healthy bacteria on your skin. The bacteria on your skin form a microbiome. This microbiome helps protect your skin from infection and harmful bacteria.

Learn more about Sorbitol
Skin Conditioning, Solvent

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!

Learn more about Water
Skin Conditioning

Tretinoin (aka retinoic acid) is the gold standard retinoid in dermatology because it's the form of vitamin A that your skin can use right away. It's a prescription drug and regulated as medication in most countries.

Unlike retinol, it skips the conversion steps and goes straight to work.

Inside your skin cells, it binds to receptors called retinoic acid receptors and switches on the genes that control how skin cells behave.

For acne, it helps your skin shed dead cells properly instead of letting them build up and clog your pores (this is what turns into blackheads and pimples). It also calms redness/swelling, which is why it's a FDA-approved acne treatment.

Tretinoin also tells your skin to make more collagen and slows down the stuff that breaks collagen apart too. Over time, your skin looks smoother, softer, and more even, with fewer lines lines and sun spots.

The evidence for this ingredient is strong:

A systematic review of randomized controlled trials found that topical tretinoin consistently improved wrinkles, pigmentation, sallowness, and dark spots. Results typically showed up as early as one month and lasted out to 24 months.

All studies also found this ingredient to be safe and well-tolerated.

Typical concentrations run from about 0.01-0.1%, with 0.025%-0.1% being the usual range studied for photoaging and a 0.05% cream producing measurable wrinkle/roughness improvements in large six-month trials.

The main trade-off is irritation; dryness, peeling, redness, and sun sensitivity are common in the first few weeks so be sure to pair it well with a good moisturizer and daily sunscreen.

Learn about a form of retinoid you can purchase at the store, retinol.

Learn more about Tretinoin

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