Essence Grow Like A Boss Lash & Brow Growth Serum Versus UK Lash Eyelash Serum

Essence Grow Like A Boss Lash & Brow Growth Serum Versus UK Lash Eyelash Serum

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Isopentyldiol

Propanediol

Glycerin

Hydroxypropyl Methylcellulose

Ricinus Communis Seed Oil

Panthenol

Nephelium Lappaceum Seed Extract

Camellia Japonica Seed Oil

Camellia Sinensis Seed Oil

Camellia Japonica Flower Extract

Camellia Japonica Seed Extract

Sodium Polyacrylate Starch

Hydroxyacetophenone

Schisandra Chinensis Fruit Extract

Caprylyl Glycol

1,2-Hexanediol

Maltodextrin

Biotinoyl Tripeptide-1

Water, Isopentyldiol, Propanediol, Glycerin, Hydroxypropyl Methylcellulose, Ricinus Communis Seed Oil, Panthenol, Nephelium Lappaceum Seed Extract, Camellia Japonica Seed Oil, Camellia Sinensis Seed Oil, Camellia Japonica Flower Extract, Camellia Japonica Seed Extract, Sodium Polyacrylate Starch, Hydroxyacetophenone, Schisandra Chinensis Fruit Extract, Caprylyl Glycol, 1,2-Hexanediol, Maltodextrin, Biotinoyl Tripeptide-1

Butylene Glycol

Camellia Sinensis Leaf Extract

Centella Asiatica Extract

Chamomilla Recutita Flower Extract

Ethylhexylglycerin

Glycyrrhiza Glabra Root Extract

Isopropyl Cloprostenate

Myristoyl Pentapeptide-17

Polygonum Cuspidatum Root Extract

Rosmarinus Officinalis Leaf Extract

Scutellaria Baicalensis Root Extract

Tocopherol

Xanthan Gum

Benzoic Acid

Phenoxyethanol

Sodium Benzoate

Water, Glycerin, Butylene Glycol, Propanediol, 1,2-Hexanediol, Biotinoyl Tripeptide-1, Camellia Sinensis Leaf Extract, Caprylyl Glycol, Centella Asiatica Extract, Chamomilla Recutita Flower Extract, Ethylhexylglycerin, Glycyrrhiza Glabra Root Extract, Isopropyl Cloprostenate, Myristoyl Pentapeptide-17, Panthenol, Polygonum Cuspidatum Root Extract, Rosmarinus Officinalis Leaf Extract, Scutellaria Baicalensis Root Extract, Tocopherol, Xanthan Gum, Benzoic Acid, Phenoxyethanol, Sodium Benzoate

Alternatives

Ingredients Explained

These ingredients are found in both products.

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

1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.

It is a:

Humectant, drawing moisture into the skin

Emollient, helping to soften skin

Solvent, dispersing and stabilizing formulas

Preservative booster, enhancing the antimicrobial activity of other preservatives

Biotinoyl Tripeptide-1 is a lab-made molecule that combines two parts: biotin (vitamin B7) and Tripeptide-1. Together, they form a peptide that’s often used in hair and eyelash products.

In-vitro studies show this ingredient helps hair bulb cells grow faster and product more structual proteins. This helps keep hair securely anchored in the follicle.

A small human study using a mascara with 2% Biotinoyl Tripeptide-1 reported lashes that were about 17% longer and 19% thicker after one month.

One study from 2025 compared topical spray vs. a combined tropical/oral treatment. The combination group saw greater increases in total hair count.

While these early results are encouraging, most of the data comes from in-vitro experiments (in test tubes) or small, short-term trials.

Biotinoyl Tripeptide-1 looks promising for supporting hair strength and growth but there’s not yet strong clinical evidence to confirm how well it works.

Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.

Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.

Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).

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.

Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.

It’s often used to:

Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.

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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