What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningDimethyl Isosorbide
SolventButylene Glycol
Humectant
Pentylene Glycol
Skin Conditioning
Glycerin
Humectant
Niacinamide
Smoothing
3-O-Ethyl Ascorbic Acid
Skin Conditioning
Betaine
Humectant
Trehalose
Humectant
Phospholipids
Skin Conditioning
Panthenol
Skin Conditioning
Retinol
Skin Conditioning
Sodium Retinoyl Hyaluronate
Retinal
Skin Conditioning
Epigallocatechin Gallate
Antioxidant
Tetraacetylphytosphingosine
Skin ConditioningLeuconostoc/Radish Root Ferment Filtrate
Antimicrobial
Glyceryl Citrate/Lactate/Linoleate/Oleate
Emulsifying
Ethyl Oleate
Emollient
Acacia Senegal Gum
MaskingXanthan Gum
EmulsifyingTetrasodium EDTA
Citric Acid
Buffering
Sodium Citrate
BufferingWater, Dimethyl Isosorbide, Butylene Glycol, Pentylene Glycol, Glycerin, Niacinamide, 3-O-Ethyl Ascorbic Acid, Betaine, Trehalose, Phospholipids, Panthenol, Retinol, Sodium Retinoyl Hyaluronate, Retinal, Epigallocatechin Gallate, Tetraacetylphytosphingosine, Leuconostoc/Radish Root Ferment Filtrate, Glyceryl Citrate/Lactate/Linoleate/Oleate, Ethyl Oleate, Acacia Senegal Gum, Xanthan Gum, Tetrasodium EDTA, Citric Acid, Sodium Citrate
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Butylene 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 GlycolDimethyl Isosorbide (often shortened to DMI) is a sugar-derived solvent made from sorbitol. It's used to dissolve tricky ingredients and help them mix smoothly into a formula.
Many actives sit as gritty crystals when undissolved, so DMI swoops in to full dissolve them. This helps improve texture, stability, and how evenly an active is distributed.
It does have a penetration-enhancing reputation that is a bit more nuanced than marketing suggests; a cell study on human skin found that 10% DMI didn't significantly boost the permeation of Hydroquinone, Salicylic Acid, or Octadecenedioic Acid compared to controls (though it did improve their solubility in the formula itself).
Typical usage concentrations usually range from 1-10% depending on the formula's needs; this ingredient is also well tolerated at these levels.
Learn more about Dimethyl IsosorbideGlycerin (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.
Learn more about GlycerinPhospholipids are a family of skin-identical lipids that makeup the structural backbone of every cell membrane in your body.
In cosmetics, they function as skin conditioning agents with emulsifier and surfactant properties. They're typically sourced from soybean or sunflower lecithin (or sometimes egg yolk or marine sources).
Because they mirror the lipids naturally found in the deeper layers of your skin, topical phospholipids help reinforce the lipid matrix, reduce transepidermal water loss, and leave skin feeling conditioned.
They're also used to form liposomes, or tiny self-assembling vesible used to stabilize actives like vitamin c or retinol. This helps these ingredients integrate into the upper layers of skin more easily.
Phospholipids are compatible with everything and the CIR Expert Panel has concluded them to be safe at current use levels.
Some types of phospholipids include:
Learn more about PhospholipidsRetinal (aka retinaldehyde) is a form of retinoid that formulators use mainly as an antiaging and skin-renewing active.
What makes it special is its position in the retinoid family; skin converts it to retinoic acid (the prescription gold standard) in just one step.
Because retinal only requires 1 conversion step to become retinoic acid, it's the strongest over-the-counter retinoid. It also works at lower concentrations than retinol, since retinal is about 10x more bioavailable.
Studies back up its efficacy in skin:
A foundational trial showed that applying 0.05-0.5% retinal for 1-3 months produced a dose-dependent and significant increase in epidermal thickness + cell turnover markers.
And a head-to-head comparison of 0.05% retinal against a 0.05% retinoid acid found both formulations were effective for the basis of wrinkle/skin roughness features, but retinoic acid caused more local irritation.
More recent controlled trials confirm it improves wrinkles, dermal density, and firmness over 12-24 weeks, with significant improvements in skin texture and firmness (particularly with the higher 0.1% concentration).
Retinal also has one trick the other retinoids do not: it directly fights against acne bacteria since a clinical study showed retinaldehyde-treated areas displayed a significant decrease in counts of viable P. acnes.
This makes it a great pick for people who want to treat aging and breakouts.
Typical cosmetic use sits in the 0.05-0.1% range with 0.05% being the gentle starting point and 0.1% giving stronger results.
Like all retinoids, retinal works best with nightly use, a good moisturizer, and daytime sunscreen. It can cause some irritation so ease into it slowly rather than going all in.
The "ramp up" method works well: start with Retinal once a week to give your skin time to adjust, which keeps irritation low.
Slowly add more nights until you reach your goal frequency once your skin feels comfortable.
Retinoids also make your skin more sensitive to the sun in the first few weeks, so wear sunscreen every morning and protect your skin from direct sun while you build up tolerance.
Learn more about RetinalWater. 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
