Typology L37 Lash And Brow Serum With 2% Pea Peptides + Castor Oil Versus Olaplex Browbond Building Serum

Typology L37 Lash And Brow Serum With 2% Pea Peptides + Castor Oil Versus Olaplex Browbond Building Serum

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Ricinus Communis Seed Oil

Dicaprylyl Ether

Pisum Sativum Peptide

1,2-Hexanediol

Glycerin

Lauryl Glucoside

Polyglyceryl-6 Laurate

Sodium Stearoyl Glutamate

Glyceryl Caprylate

Sclerotium Gum

Xanthan Gum

Myristyl Glucoside

Leuconostoc/Radish Root Ferment Filtrate

Panthenol

Sodium Hydroxide

Tocopherol

Biotinoyl Tripeptide-1

Citric Acid

Water, Ricinus Communis Seed Oil, Dicaprylyl Ether, Pisum Sativum Peptide, 1,2-Hexanediol, Glycerin, Lauryl Glucoside, Polyglyceryl-6 Laurate, Sodium Stearoyl Glutamate, Glyceryl Caprylate, Sclerotium Gum, Xanthan Gum, Myristyl Glucoside, Leuconostoc/Radish Root Ferment Filtrate, Panthenol, Sodium Hydroxide, Tocopherol, Biotinoyl Tripeptide-1, Citric Acid

Butylene Glycol

Vp/Va Copolymer

Hydroxyethylcellulose

Palmitoyl Pentapeptide-4

Acetyl Tetrapeptide-3

Myristoyl Pentapeptide-17

Palmitoyl Tetrapeptide-20 Amide

Bis-Aminopropyl Diglycol Dimaleate

Sodium Hyaluronate

Biotin

Avena Sativa Kernel Extract

Pantethine

Aminomethyl Propanol

Sorbic Acid

Rhizobian Gum

Benzoic Acid

Sodium Benzoate

Dextran

Trifolium Pratense Flower Extract

Phenoxyethanol

Chlorphenesin

Potassium Sorbate

Water, Butylene Glycol, Glycerin, Vp/Va Copolymer, Hydroxyethylcellulose, Palmitoyl Pentapeptide-4, Acetyl Tetrapeptide-3, Myristoyl Pentapeptide-17, Palmitoyl Tetrapeptide-20 Amide, Bis-Aminopropyl Diglycol Dimaleate, Sodium Hyaluronate, Biotin, Panthenol, Avena Sativa Kernel Extract, Pantethine, Aminomethyl Propanol, Sorbic Acid, Rhizobian Gum, Benzoic Acid, Sodium Benzoate, Dextran, Trifolium Pratense Flower Extract, Citric Acid, Phenoxyethanol, Chlorphenesin, Potassium Sorbate

Alternatives

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.

Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.

However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.

Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.

In skincare formulas, citric acid can:

While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.

Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.

Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger.

However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure.

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.

Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.

There are two forms of panthenol: D and L.

D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.

Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):

Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.

This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.

Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.

This ingredient is also referred to as pro-vitamin B5.

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!

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