Kylie Skin Lip Butter Versus Summer Fridays Lip Butter Balm

Kylie Skin Lip Butter Versus Summer Fridays Lip Butter Balm

This barrier-repair lip moisturizer is formulated around Butyrospermum Parkii Butter and Simmondsia Chinensis Seed Oil to strengthen the lip barrier and hydrate lips.

This barrier-repair lip moisturizer is formulated around Butyrospermum Parkii Butter and Sodium Hyaluronate to strengthen the lip barrier and hydrate lips.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Diisostearyl Malate

Hydrogenated Polyisobutene

Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate

Caprylic/Capric Triglyceride

Polybutene

Butyrospermum Parkii Butter

Synthetic Wax

Ethylene/Propylene/Styrene Copolymer

Simmondsia Chinensis Seed Oil

Euphorbia Cerifera Cera

Punica Granatum Flower Extract

Glyceryl Caprylate

Parfum

Polyglyceryl-3 Diisostearate

Butylene/Ethylene/Styrene Copolymer

Benzyl Alcohol

Rubus Chamaemorus Seed Oil

Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

Tocopherol

Diisostearyl Malate, Hydrogenated Polyisobutene, Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate, Caprylic/Capric Triglyceride, Polybutene, Butyrospermum Parkii Butter, Synthetic Wax, Ethylene/Propylene/Styrene Copolymer, Simmondsia Chinensis Seed Oil, Euphorbia Cerifera Cera, Punica Granatum Flower Extract, Glyceryl Caprylate, Parfum, Polyglyceryl-3 Diisostearate, Butylene/Ethylene/Styrene Copolymer, Benzyl Alcohol, Rubus Chamaemorus Seed Oil, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Tocopherol

Hydrogenated Poly(C6-14 Olefin)

Cera Microcristallina

Octyldodecanol

Disteardimonium Hectorite

Astrocaryum Murumuru Seed Butter

Sodium Hyaluronate

Propylene Carbonate

Polyglyceryl-2 Diisostearate

Aluminum Hydroxide

Mica

BHT

Benzyl Benzoate

CI 15850

CI 45410

CI 77891

Phytosteryl/Isostearyl/Cetyl/Stearyl/Behenyl Dimer Dilinoleate, Diisostearyl Malate, Hydrogenated Polyisobutene, Polybutene, Hydrogenated Poly(C6-14 Olefin), Butyrospermum Parkii Butter, Cera Microcristallina, Octyldodecanol, Synthetic Wax, Disteardimonium Hectorite, Astrocaryum Murumuru Seed Butter, Sodium Hyaluronate, Tocopherol, Propylene Carbonate, Polyglyceryl-2 Diisostearate, Aluminum Hydroxide, Parfum, Mica, BHT, Benzyl Alcohol, Benzyl Benzoate, CI 15850, CI 45410, CI 77891

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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.

Benzyl Alcohol is an aromatic alcohol with several roles: it's a preservative, solvent, and mild fragrance component with a floral scent.

This ingredient has been deemed safe for use in cosmetic formulations at concentrations up to 5%, and up to 10% in hair dyes. You'll typically see 0.5-2% in most rinse-off or leave-on products.

As a preservative, it works by disrupting the membrane of microbial proteins. This helps keep bacteria and fungi from growing in your products.

The sensitization picture is actually quite assuring as well:of nearly 71,000 patients patch tested with benzyl alcohol, only 0.21% showed a positive reaction with most of them being weakly positive.

This led researchers to conclude that benzyl alcohol cannot be regarded as a significant contact allergen.

It is worth noting this ingredient is classified as one of the EU's regulated fragrance allergens and restricted to 1% in finished products.

Labels must also declare it in concentrations above 0.001% in leave-on products and 0.01% in rinse-off products.

At concentrations around 5%, localized redness and itching can appear as a direct irritant response and not as a true allergic reaction.

This ingredient is also known as shea butter. It is a plant-derived extract from the nuts of the Africa shea tree and one of the most well-studied emollients.

Because it has a high concentration of fatty acids (primarily oleic, stearic, and linoleic) it is able to form a protective barrier on the skin's surface. This helps seal in moisture and prevents transepidermal water loss (TEWL).

In vitro research found an increase in skin hydration by 58% and a decrease in TEWL by 37.8% after 24 hours of applying this ingredient (pretty impressive for a single ingredient!).

Besides hydration, shea butter also contains triterpenes that have anti-inflammatory potential. In particule, lupeol cinnamate has shown the highest anti-inflammatory activity in vivo.

Shea butter also contains vitamins A and E which may contribute to antioxidant activity.

While Shea Butter has an SPF rating of about 3-4, it is not a sunscreen replacement.

This ingredient may not be fungal acne safe because its fatty acids fall within the C11-C24 range that the Malassezia yeast can metabolize.

Diisostearyl Malate is an emollient and most often used in lip products. It comes from isostearyl alcohol, a fatty acid, and malic acid, an AHA.

As an emollient, Diisostearyl Malate helps create a thin film on your skin to trap moisture in. This helps keep your skin soft and smooth.

Hydrogenated Polyisobutene is a synthetic polymer. Polymers are compounds with high molecular weight. Hydrogenated Polyisobutene is an emollient and texture enhancer.

In one study, Hydrogenated Polyisobutene showed better skin hydration levels than Caprylic/Capric Triglyceride. As an emollient, it helps keep your skin soft and hydrated by trapping moisture in.

Hydrogenated Polyisobutene is often used as a mineral oil replacement.

Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.

Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.

For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.

The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.

For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.

One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.

Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.

Parfum can also be used to mask or cover an unpleasant scent.

The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.

This is a plant-derived ester that functions as a skin conditioner. It's basically a two linoleic acid molecules combined with fatty alcohols.

In practice, it works as a rich emollient that helps reduce moisture loss and give skin a soft appearance.

The phytosterol part of this ingredient brings an added structural bonus: phytosterols are structurally similar to cholesterol so they can fit right into the stratum corneum's lipid matrix to help reinforce the skin barrier.

Due to its molecular structure, this ingredient delivers a cushiony and glossy feeling without being excessively greasy.

It did not produce skin irritation or sensitization in clinical studies, and this ingredient is deemed safe to use in cosmetics at current practices.

Because this ingredient contains C16, C18, and C22 fatty chains, it may not be Malassezia/fungal acne safe. The Malassezia yeast potentially feeds on fatty acids in the C11-C24 range.

Polybutene is used to help control the viscosity of a product. This just means it helps adjusts the texture.

It is a polymer and does not get absorbed into the skin due to its large size.

Studies found this ingredient did not irritate skin in concentrations below 15%.

Synthetic Wax is a manufactured hydrocarbon wax. In formulas, it works as an occlusive emollient that helps reduce water loss and improves the spreadability of products.

Research comparing synthetic wax to traditional mineral-derived products found that formulas containing it perform as well for skin hydration.

It is considered non-comedogenic and vegan-friendly.

This ingredient has a well-established safety record by the CIR Expert Panel for Cosmetic Ingredient Safety.

Synthetic Waxes are straight/branched-chain hydrocarbons with no ester bond or fatty acids. That means there is nothing for the Malassezia yeast to feed on.

Tocopherol is a fat-soluble antioxidant known as Vitamin E.

You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.

Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.

It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.

This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.

This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.

In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.

Concentrations usually range from 0.1-1% in most leave-on products.

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