Kiehl's Clearly Corrective Daily Re-Texturizing Triple Acid Peel Versus Rationale #5 The Serum
Updated on February 29, 2024
Overview
What they are
These products are both reef safe . They have a total of 9 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, dry skin, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, parabens, silicones or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
Kiehl's Clearly Corrective Daily Re-Texturizing Triple Acid Peel 23 ingredients
Rationale #5 The Serum 55 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Kiehl's Clearly Corrective Daily Re-Texturizing Triple Acid Peel 23 ingredients
Rationale #5 The Serum 55 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPentylene Glycol
Skin ConditioningGlycerin
Humectant
Glycolic Acid
Buffering
Gluconolactone
Skin Conditioning
Centaurea Cyanus Flower Water
Skin ConditioningPropanediol
SolventLactic Acid
Buffering
Sodium Hydroxide
BufferingPanthenol
Skin Conditioning
Allantoin
Skin Conditioning
Salicylic Acid
Masking
Trisodium Ethylenediamine Disuccinate
Hydroxyethylcellulose
Emulsion StabilisingCopper Gluconate
Skin ConditioningCoco-Betaine
CleansingCarica Papaya Fruit Extract
Skin ConditioningCitric Acid
Buffering
Potassium Sorbate
Preservative
Arginine
Masking
Disodium Phosphate
BufferingPolysorbate 60
Emulsifying
Sodium Phosphate
BufferingWater, Pentylene Glycol, Glycerin, Glycolic Acid, Gluconolactone, Centaurea Cyanus Flower Water, Propanediol, Lactic Acid, Sodium Hydroxide, Panthenol, Allantoin, Salicylic Acid, Trisodium Ethylenediamine Disuccinate, Hydroxyethylcellulose, Copper Gluconate, Coco-Betaine, Carica Papaya Fruit Extract, Citric Acid, Potassium Sorbate, Arginine, Disodium Phosphate, Polysorbate 60, Sodium Phosphate
Water
Skin ConditioningEthoxydiglycol
HumectantVaccinium Myrtillus Fruit Extract
Skin ConditioningDimethyl Isosorbide
SolventSalicylic Acid
Masking
Lactic Acid
Buffering
Saccharum Officinarum Extract
MoisturisingGlycerin
Humectant
Citrus Aurantium Dulcis Fruit Extract
MaskingCitrus Limon Fruit Extract
Masking
Sodium Levulinate
Skin ConditioningAcer Saccharum Extract
Skin ConditioningDiutan Gum
Melaleuca Alternifolia Leaf
Abrasive
Sodium Anisate
AntimicrobialMentha Australis Leaf Extract
Skin ConditioningButylene Glycol
Humectant
Santalum Spicatum Seed Oil
Skin Conditioning
Citrus Aurantium Dulcis Oil
Masking
Citrus Aurantium Bergamia Leaf Oil
Astringent
Juniperus Mexicana Oil
Masking
Pelargonium Graveolens Oil
Masking
Citrus Aurantium Amara Flower Oil
Masking
Eugenia Caryophyllus Leaf Oil
Masking
Citrus Aurantium Bergamia Fruit Oil
Masking
Citrus Grandis Peel Oil
Masking
Citrus Limon Peel Oil
Masking
Litsea Cubeba Fruit Oil
Masking
Pentylene Glycol
Skin ConditioningMagnesium Aspartate
Skin ConditioningZinc Gluconate
Skin Conditioning
Citrus Australasica Fruit Extract
Antioxidant
Sodium Benzoate
Masking
Citric Acid
Buffering
Copper Gluconate
Skin ConditioningPotassium Sorbate
Preservative
Glycine
Buffering
Serine
MaskingGlutamic Acid
HumectantAspartic Acid
MaskingLeucine
Skin ConditioningAlanine
MaskingLysine
Skin ConditioningArginine
Masking
Tyrosine
MaskingPhenylalanine
MaskingProline
Skin ConditioningThreonine
Valine
MaskingIsoleucine
Skin ConditioningHistidine
HumectantLimonene
Perfuming
Citral
Perfuming
Linalool
Perfuming
Citronellol
Perfuming
Water, Ethoxydiglycol, Vaccinium Myrtillus Fruit Extract, Dimethyl Isosorbide, Salicylic Acid, Lactic Acid, Saccharum Officinarum Extract, Glycerin, Citrus Aurantium Dulcis Fruit Extract, Citrus Limon Fruit Extract, Sodium Levulinate, Acer Saccharum Extract, Diutan Gum, Melaleuca Alternifolia Leaf, Sodium Anisate, Mentha Australis Leaf Extract, Butylene Glycol, Santalum Spicatum Seed Oil, Citrus Aurantium Dulcis Oil, Citrus Aurantium Bergamia Leaf Oil, Juniperus Mexicana Oil, Pelargonium Graveolens Oil, Citrus Aurantium Amara Flower Oil, Eugenia Caryophyllus Leaf Oil, Citrus Aurantium Bergamia Fruit Oil, Citrus Grandis Peel Oil, Citrus Limon Peel Oil, Litsea Cubeba Fruit Oil, Pentylene Glycol, Magnesium Aspartate, Zinc Gluconate, Citrus Australasica Fruit Extract, Sodium Benzoate, Citric Acid, Copper Gluconate, Potassium Sorbate, Glycine, Serine, Glutamic Acid, Aspartic Acid, Leucine, Alanine, Lysine, Arginine, Tyrosine, Phenylalanine, Proline, Threonine, Valine, Isoleucine, Histidine, Limonene, Citral, Linalool, Citronellol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. Stay hydrated!
Learn more about WaterPentylene 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 GlycolGlycerin 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.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinLactic Acid is an AHA that is derived from fermenting lactose, a carbohydrate from milk. It removes the top layer of old and dead skin cells and helps increase cell turnover.
Benefits of Lactic Acid are that it can help to reduce large pores and reduce the effects of aging. Some potential downsides are that it can be bad for dry skin, cause irritation, worsen eczema, and worsen rosacea.
Not only does it help exfoliate the skin, it helps strengthen the skin's barrier. When applied, lactic acid helps the skin create ceramides.
Lactic acid is an over-the-counter chemical exfoliant that comes from the fermentation of lactose — a carbohydrate found in milk.
Legend has it that Cleopatra used to bathe in sour milk to help reduce wrinkles.
Read more about some other popular AHA's here:
Learn more about Lactic AcidSalicylic 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 AcidThis 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.
Copper has wound healing properties due to its role in creating new blood vessels and tissue repair.
Learn more about Copper GluconateCitric 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 AcidPotassium 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.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Learn more about Potassium SorbateArginine is an amino acid that is important for human development. Your body uses is it to produce hair keratin and skin collagen.
As a cosmetic ingredient, Arginine has antioxidant properties and can also help repair damaged skin. This ingredient is derived either synthetically or from animals.
Arginine isn't fungal acne safe when used in the presence of other lipids (fats, fatty acids, oils, esters, etc). Oils and fats occur naturally within the skin, so take caution when using Arginine if you're prone to fungal acne.
Learn more about ArginineIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Kiehl's Clearly Corrective Daily Re-Texturizing Triple Acid Peel 23 ingredients
Rationale #5 The Serum 55 ingredients
Reviews
Here's what our community thinks
Kiehl's Clearly Corrective Daily Re-Texturizing Triple Acid Peel 23 ingredients
This is making me break out. I broke out in a huge nodule that was hard and red. Had to buy another product to treat that. Broke out in tiny white dots on forehead.
I really love this product. It made my skin silky soft and I see very less tiny bumps on my face after using this one.
