Skin science article
Amlactin Rapid Relief Restoring Body Lotion Versus First Aid Beauty KP Smoothing Body Lotion
Amlactin Rapid Relief Restoring Body Lotion Versus First Aid Beauty KP Smoothing Body Lotion What's inside Key Ingredients Benefits Concerns Ingredients Side-by-side Water Ammonium Lactate Glycerin Sodium Lactate Potassium Lactate Paraffinum Liquidum Petrolatu
Amlactin Rapid Relief Restoring Body Lotion Versus First Aid Beauty KP Smoothing Body Lotion
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Ammonium Lactate
Glycerin
Sodium Lactate
Potassium Lactate
Paraffinum Liquidum
Petrolatum
Steareth-21
Dimethicone
Glyceryl Stearate Se
Stearyl Alcohol
Steareth-2
Tocopheryl Acetate
Sodium Lauroyl Lactylate
Ceramide NP
Ceramide AP
Ceramide EOP
Phytosphingosine
Cholesterol
Xanthan Gum
Carbomer
Potassium Sorbate
Water, Ammonium Lactate, Glycerin, Sodium Lactate, Potassium Lactate, Paraffinum Liquidum, Petrolatum, Steareth-21, Dimethicone, Glyceryl Stearate Se, Stearyl Alcohol, Steareth-2, Tocopheryl Acetate, Sodium Lauroyl Lactylate, Ceramide NP, Ceramide AP, Ceramide EOP, Phytosphingosine, Cholesterol, Xanthan Gum, Carbomer, Potassium Sorbate
Lactic Acid
Propanediol
C12-15 Alkyl Benzoate
Caprylic/Capric Triglyceride
Silica
Sodium Hydroxide
Palmitic Acid
Stearic Acid
Glyceryl Stearate
Urea
Allantoin
Colloidal Oatmeal
Camellia Sinensis Leaf Extract
Glycyrrhiza Glabra Root Extract
Chrysanthemum Parthenium Extract
Sodium Phytate
Sodium PCA
Cetearyl Alcohol
Phenoxyethanol
Sodium Benzoate
Tetrasodium EDTA
Water, Lactic Acid, Propanediol, C12-15 Alkyl Benzoate, Caprylic/Capric Triglyceride, Silica, Sodium Hydroxide, Palmitic Acid, Dimethicone, Stearic Acid, Glyceryl Stearate, Glyceryl Stearate Se, Glycerin, Urea, Allantoin, Colloidal Oatmeal, Ceramide NP, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root Extract, Chrysanthemum Parthenium Extract, Sodium Phytate, Sodium PCA, Xanthan Gum, Cetearyl Alcohol, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Tetrasodium EDTA
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Ceramide NP (formerly known as Ceramide 3) is one of the skin's naturally occurring lipids.
Since ceramides are the major lipid components of the skin, they are crucial for maintaining skin barrier and hydration. Ceramide NP most closely mirrors the dominant kind in human skin amongst ceramide subtypes.
This ceramide works by slotting into gaps within the stratum corneum's lipid matrix to limit trans-epidermal water loss (TEWL) and shield the skin against external irritants.
A study with 312 patients found that using a ceramide-containing routine for 4 weeks reduced the severity of atopic dermatitis by over 61%.
Another clinical study in subjects aged 60 and older found that a ceramide body wash and moisturizer improved skin dryness and itchy skin in 15 days.
Overall, ceramides are considered non-irritating and safety tests have found little to no observable adverse effects from using this ingredient.
Ceramide NP is usually sourced from plants (like soybean or rice bran), or produced synthetically.
Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Glyceryl Stearate Se is a self-emulsifying (SE) form of glyceryl stearate. Self-emusifying means this ingredient automatically blends with water. It is an emulsifier, emollient, and cleansing agent.
As an emulsifier, Glyceryl Stearate Se prevents ingredients such as oil and water from separating. It is also a surfactant, meaning it helps cleanse the skin. Surfactants help gather oil, dirt, and other pollutants so they may be rinsed away easily.
Emollients help your skin stay smooth and soft. It does so by creating a film on top of the skin that helps trap moisture in.
Potassium 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.
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!
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.