Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

bondi sands SPF 50 Fragrance Free Sunscreen Lotion Versus Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++

bondi sands SPF 50 Fragrance Free Sunscreen Lotion Versus Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++ This chemical sunscreen covers most of the UV range, lighter on the deep UVA that drives aging. This chemical sunscreen covers the full UV

bondi sands SPF 50 Fragrance Free Sunscreen Lotion Versus Beauty of Joseon Relief Sun : Rice + Probiotics SPF 50+ PA++++

This chemical sunscreen covers most of the UV range, lighter on the deep UVA that drives aging.

This chemical sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Butyl Methoxydibenzoylmethane 3%

Homosalate 10%

Ethylhexyl Salicylate 5%

Octocrylene 8%

Water

Cera Alba

Aloe Barbadensis Leaf Juice

Isopropyl Palmitate

Cetearyl Alcohol

Cyclopentasiloxane

Cyclohexasiloxane

Ceteareth-20

Hydroxyacetophenone

Carbomer

Benzyl Alcohol

Saccharide Isomerate

Phenoxyethanol

Sodium Stearoyl Glutamate

Triethanolamine

Tocopheryl Acetate

Sodium Chloride

Citric Acid

Butyl Methoxydibenzoylmethane 3%, Homosalate 10%, Ethylhexyl Salicylate 5%, Octocrylene 8%, Water, Cera Alba, Aloe Barbadensis Leaf Juice, Isopropyl Palmitate, Cetearyl Alcohol, Cyclopentasiloxane, Cyclohexasiloxane, Ceteareth-20, Hydroxyacetophenone, Carbomer, Benzyl Alcohol, Saccharide Isomerate, Phenoxyethanol, Sodium Stearoyl Glutamate, Triethanolamine, Tocopheryl Acetate, Sodium Chloride, Citric Acid

Dibutyl Adipate

Propanediol

Diethylamino Hydroxybenzoyl Hexyl Benzoate

Polymethylsilsesquioxane

Ethylhexyl Triazone

Niacinamide

Methylene Bis-Benzotriazolyl Tetramethylbutylphenol

Coco-Caprylate/Caprate

Caprylyl Methicone

Diethylhexyl Butamido Triazone

Glycerin

1,2-Hexanediol

Butylene Glycol

Oryza Sativa Extract

Oryza Sativa Germ Extract

Camellia Sinensis Leaf Extract

Lactobacillus/Pumpkin Ferment Extract

Bacillus/Soybean Ferment Extract

Saccharum Officinarum Extract

Macrocystis Pyrifera Extract

Cocos Nucifera Fruit Extract

Panax Ginseng Root Extract

Monascus/Rice Ferment

Behenyl Alcohol

Poly C10-30 Alkyl Acrylate

Polyglyceryl-3 Methylglucose Distearate

Decyl Glucoside

Tromethamine

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Polyacrylate Crosspolymer-6

Adenosine

Xanthan Gum

T-Butyl Alcohol

Tocopherol

Lactobacillus/Rice Ferment

Aspergillus Ferment

Saccharomyces/Rice Ferment Filtrate

Pentylene Glycol

Ethylhexylglycerin

Water, Dibutyl Adipate, Propanediol, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Polymethylsilsesquioxane, Ethylhexyl Triazone, Niacinamide, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Coco-Caprylate/Caprate, Caprylyl Methicone, Diethylhexyl Butamido Triazone, Glycerin, 1,2-Hexanediol, Butylene Glycol, Oryza Sativa Extract, Oryza Sativa Germ Extract, Camellia Sinensis Leaf Extract, Lactobacillus/Pumpkin Ferment Extract, Bacillus/Soybean Ferment Extract, Saccharum Officinarum Extract, Macrocystis Pyrifera Extract, Cocos Nucifera Fruit Extract, Panax Ginseng Root Extract, Monascus/Rice Ferment, Behenyl Alcohol, Poly C10-30 Alkyl Acrylate, Polyglyceryl-3 Methylglucose Distearate, Decyl Glucoside, Tromethamine, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Stearoyl Glutamate, Polyacrylate Crosspolymer-6, Adenosine, Xanthan Gum, T-Butyl Alcohol, Tocopherol, Lactobacillus/Rice Ferment, Aspergillus Ferment, Saccharomyces/Rice Ferment Filtrate, Pentylene Glycol, Ethylhexylglycerin

Reviews

Alternatives

Ingredients Explained

These ingredients are found in both products.

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

Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture.

Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%.

It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier.

Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%.

A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions.

Sodium Stearoyl Glutamate is an amino-acid based emulsifier. It is made by combining stearic acid with L-glutamic acid and neutralizing it to a sodium salt.

As an emulsifier, it works mainly as an oil-in-water one and helps keep the oil and water in your formulas blended. It also contributes to a smooth, non-greasy skin feel.

This ingredient is biodegradable and commonly available in natural/COSMOS-certified grades.

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!

Similar Comparisons

The reference edit

Ingredients, questions
& further reading.

Connected source records selected through this article’s public topic index.

01

Formula cabinet

Ingredients & structured notes

Ingredient index

Ingredients Explained

  1. 01These ingredients are found in both products.
  2. 02Ingredients higher up in an ingredient list are typically present in a larger amount.
  3. 03Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss.
  4. 04Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid.
  5. 05In practice, that translates to a long shelf life and a consistently elegant skin feel.
  6. 06While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns.
  7. 07Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source.
  8. 08This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out.
  9. 09This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures…
  10. 10Cetearyl alcohol is a waxy mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is an emollient and emulsifier.
  11. 11Despite having "alcohol" in its name, it has nothing to do with drying solvent alcohols; the FDA also allows "alcohol-free" products to contain fatty alcohols like this ingredient.
  12. 12It plays several roles in a formula:
  13. 13Typical use levels for this ingredient sit around 1-10% and the Cosmetic Ingredient Review Expert Panel has affirmed safety at concentrations up to 25% in leave-on products.
  14. 14Multiple assessments have found it to be non-irritating and non-sensitizing to most people.
  15. 15However, there have been some cases of allergic contact dermatitis in patients with chronically compromised skin barriers.
  16. 16Cetearyl alcohol has a comedogenic rating of 2 and irritancy rating of 1. Both of these numbers come from the 1989 study that used rabbit ears; a "2" means mildly comedogenic and a "1" means low irritancy.
  17. 17Here's the catch: rabbit skin is more sensitive than human skin and throws a lot of false positives. A 1996 reappraisal found that ingredients rated 1-2 in the rabbit ear tests are generally safe for humans.
  18. 18Remember comedogenic ratings are unable to assess the entire formula of a product or how it will react on your skin. Just be sure to patch test if you are unsure about certain ingredients.
  19. 19This ingredient is not fungal acne safe. Cetearyl alcohol is a fatty alcohol with chain lengths that fall within the range that Malassezia can metabolize.
  20. 20A 2019 study has also observed Malassezia growth in the presence of this ingredient, confirming it to be not-fungal acne safe.
Source · skinsort.com
02

Product index

Related product references

03

Comparison edit

Read side by side