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Product Comparison

Here's our complete breakdown comparing the ingredients, attributes, and more of Biologique Recherche Lotion P50 1970 versus Peter Thomas Roth Peptide 21 Amino Acid Exfoliating Peel Pads .

Last updated on December 20, 2023. Published on February 21, 2024

Overview

What they are

These products are both reef safe . They have a total of 3 ingredients in common

Cool Features

They both contain AHA and BHA

Suited For

They're both likely to be good for fighting acne, anti aging, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture

Free From

They both do not contain any harsh alcohols, common allergens or parabens

We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that need an update? Let us know.

Toner Brand
Exfoliator American Brand United States

Toner

Toners are used as a “last-step” cleanser, a pH balancer, add moisture to the skin, or may help in reducing impurities on the skin. They have a liquid consistency and are usually used after cleansers but before treatments.

Exfoliator

Exfoliators are used to exfoliate the skin, or remove dead skin cells from the skin. Exfoliators may be chemical or physical.

Price

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
ph level
3.5
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

At a glance

Click on any of the items below to learn more

Notable Ingredients

AHA
BHA
Niacinamide

Benefits

Hydrating
Good For Oily Skin (2)
Redness Reducing
Skin Texture
Reduces Large Pores (3)
Anti-Aging
Dark Spots (2)
Scar Healing (2)
Acne Fighting (3)
Brightening (4)

Concerns

Drying
Irritating (2)
Rosacea (2)
Eczema (2)

Notable Ingredients

AHA
BHA
Retinoid (2)
Vitamin C (2)
Vitamin E
Exfoliators

Benefits

Good For Oily Skin (3)
Redness Reducing (5)
Reduces Irritation (4)
Skin Texture (4)
Reduces Large Pores (4)
Anti-Aging (5)
Dark Spots (4)
Scar Healing (5)
Acne Fighting (4)
Brightening (6)

Concerns

Drying (4)
Irritating (3)
Rosacea (3)
Eczema (4)
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Ingredients Compared

Ingredients that are highlighted in purple are present in both products.

Ingredients Side-by-side

Ingredients that are highlighted in purple are present in both products.

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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.

1
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

Biologique Recherche Lotion P50 1970 contains this as ingredient number 1.

Peter Thomas Roth Peptide 21 Amino Acid Exfoliating Peel Pads contains this as ingredient number 3.

2
What it does: Masking, Preservative, Skin Conditioning
Community Rating: Liked

Salicylic Acid (also known as beta hydroxy acid or BHA) is one of the most well-known ingredients for treating skin that struggles with blackheads and acne. It helps to exfoliate both the skin's surface and pores, and also acts as an anti-inflammatory agent.

This multitasking property makes it a great ingredient for cleaning out pores, controlling oil production, and reducing inflammation.

Unlike AHAs which are water soluble, Salicylic Acid is oil soluble. This means that it's able to exfoliate the inside of pores and reduce blackheads.

Concentrations of 0.5-2% are recognized by the U.S. FDA as an over-the-counter topical acne product.

It can cause irritation and/or dryness if one's skin already has a compromised moisture barrier, so it's best to focus on repairing that before introducing a Salicylic Acid into your routine.

In general, Salicylic Acid is a great ingredient for oily acne-prone skin.

While salicylic acid does not increase sun-sensitivity, we still recommend wearing SPF.

If you are looking for the ingredient called BHA or Butylated Hydroxyanisole, click here.

Learn more about Salicylic Acid

Biologique Recherche Lotion P50 1970 contains this as ingredient number 10.

Peter Thomas Roth Peptide 21 Amino Acid Exfoliating Peel Pads contains this as ingredient number 10.

3
What it does: Masking, Preservative
Community Rating: Disliked

Sodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.

Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.

Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.

Sodium Benzoate is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.

Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.

We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.

Learn more about Sodium Benzoate

Biologique Recherche Lotion P50 1970 contains this as ingredient number 11.

Peter Thomas Roth Peptide 21 Amino Acid Exfoliating Peel Pads contains this as ingredient number 41.

Here's what our community thinks of the ingredients in these two products.

58% are loved or liked
25% have mixed ratings
8% are disliked or very disliked
8% have no rating yet
54% are loved or liked
9% have mixed ratings
24% are disliked or very disliked
13% have no rating yet

Usage

Here's some more info on how this product is used by our community.

When to use

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Reviews

Here's what our community thinks

Biologique Recherche Lotion P50 1970 12 ingredients

5.0 /5
from 1 rating

Peter Thomas Roth Peptide 21 Amino Acid Exfoliating Peel Pads 54 ingredients

Peptide 21 Amino Acid Exfoliating Peel Pads hasn't been rated yet.
Rate it now

Alternatives

Our Dupe Finder has found 38 potential alternatives that have similar ingredients to Biologique Recherche Lotion P50 1970.

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We haven't detected any alternatives for Peter Thomas Roth Peptide 21 Amino Acid Exfoliating Peel Pads.

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