Updated on September 07, 2024
Overview
What they are
These products are both cruelty-free serums. They have a total of 6 ingredients in common
Cool Features
They both contain retinoid
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, 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
+ful Retinol 1% Serum 24 ingredients
Klued 0.5% Retinol Serum 21 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
+ful Retinol 1% Serum 24 ingredients
Klued 0.5% Retinol Serum 21 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningButylene Glycol
Humectant
Palmitoyl Hydroxypropyltrimonium Amylopectin/Glycerin Crosspolymer
Skin ConditioningPolysorbate 20
Emulsifying
Retinol
Skin Conditioning
Hydrogenated Lecithin
Emulsifying
Methylparaben
Preservative
BHT
Antioxidant
Propylparaben
Preservative
Ethylparaben
Preservative
Butylparaben
Masking
BHA
Antioxidant
C15-19 Alkane
SolventGlycerin
Humectant
Phenoxyethanol
Preservative
Chlorphenesin
Antimicrobial
Polyacrylate-13
Polyisobutene
Glycyrrhiza Glabra Root Extract
Bleaching
Lactobacillus Ferment
Skin ConditioningAvena Sativa Kernel Extract
Abrasive
Sodium Benzoate
Masking
Potassium Sorbate
Preservative
Allantoin
Skin Conditioning
Water, Butylene Glycol, Palmitoyl Hydroxypropyltrimonium Amylopectin/Glycerin Crosspolymer, Polysorbate 20, Retinol, Hydrogenated Lecithin, Methylparaben, BHT, Propylparaben, Ethylparaben, Butylparaben, BHA, C15-19 Alkane, Glycerin, Phenoxyethanol, Chlorphenesin, Polyacrylate-13, Polyisobutene, Glycyrrhiza Glabra Root Extract, Lactobacillus Ferment, Avena Sativa Kernel Extract, Sodium Benzoate, Potassium Sorbate, Allantoin
Water
Skin ConditioningCetyl Ethylhexanoate
EmollientButylene Glycol
Humectant
Stearic Acid
Cleansing
Glycerin
Humectant
Vitis Vinifera
Masking
Vitis Vinifera Seed Oil
Emollient
Camellia Sinensis Leaf Extract
Antimicrobial
Helianthus Annuus Seed Oil
Emollient
Prunus Amygdalus Dulcis Oil
Skin Conditioning
PEG-40 Hydrogenated Castor Oil
Emulsifying
Triethanolamine
BufferingSalix Alba Bark Extract
Astringent
Retinol
Skin Conditioning
Carbomer
Emulsion StabilisingAllantoin
Skin Conditioning
Panthenol
Skin Conditioning
Tocopheryl Acetate
Antioxidant
Rosa Canina Seed Oil
Emollient
Ethylhexylglycerin
Skin ConditioningPhenoxyethanol
Preservative
Water, Cetyl Ethylhexanoate, Butylene Glycol, Stearic Acid, Glycerin, Vitis Vinifera, Vitis Vinifera Seed Oil, Camellia Sinensis Leaf Extract, Helianthus Annuus Seed Oil, Prunus Amygdalus Dulcis Oil, PEG-40 Hydrogenated Castor Oil, Triethanolamine, Salix Alba Bark Extract, Retinol, Carbomer, Allantoin, Panthenol, Tocopheryl Acetate, Rosa Canina Seed Oil, Ethylhexylglycerin, Phenoxyethanol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Allantoin plays a role in soothing and moisturizing the skin. Because of this, it is often added to products with strong active ingredients.
Some studies have shown this ingredient can promote wound healing with higher concentrations.
Allantoin is derived from the comfrey plant but produced synthetically for cosmetic products to ensure purity.
Learn more about AllantoinButylene 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.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Learn more about Butylene 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 GlycerinPhenoxyethanol 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.
Retinol is a gold-standard ingredient for anti-aging. It is a form of Vitamin A and belongs to the class of retinoids that also includes tretinoin.
Why is retinol famous?
It has the most scientific studies backing up its skin benefits out of all the non-prescription ingredients.
Retinol is proven to:
This is why retinol is effective at removing wrinkles, fading dark spots, treating acne, and reducing the appearance of pores.
Studies show retinol is less effective when exposed to UV. Be sure to look for appropriate packaging to keep your retinol potent (similar to Vitamin C).
Using retinol or any retinoids will increase sun-sensitivity in the first few months. 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 RetinolWater. 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 WaterIngredient Ratings
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