The Formula rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 Versus Azarine Hydrasoothe Sunscreen Gel SPF45 PA++++
Updated on February 11, 2025
Overview
What they are
These products are both cruelty-free and fungal acne (malassezia) safe sunscreens. They have a total of 12 ingredients in common
Cool Features
They both contain hyaluronic acid and SPF
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, sensitive skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones or sulfates
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
The Formula rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 28 ingredients
Azarine Hydrasoothe Sunscreen Gel SPF45 PA++++ 24 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
The Formula rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 28 ingredients
Azarine Hydrasoothe Sunscreen Gel SPF45 PA++++ 24 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningPropanediol
Solvent
Butylene Glycol
Humectant
Ethylhexyl Methoxycinnamate
UV Absorber
Octocrylene
UV Absorber
Ascorbyl Glucoside
Antioxidant
Butyl Methoxydibenzoylmethane
UV Absorber
Diethylamino Hydroxybenzoyl Hexyl Benzoate
UV Filter
Titanium Dioxide
Cosmetic Colorant
Centella Asiatica Extract
Cleansing
Ascorbic Acid
Antioxidant
Sodium Hyaluronate
Humectant
Panthenol
Skin Conditioning
Polygonum Cuspidatum Root Extract
Antioxidant
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Dicaprylyl Carbonate
EmollientScutellaria Baicalensis Root Extract
AstringentGlycyrrhiza Glabra Root Extract
Bleaching
Gold
Cosmetic ColorantDisodium EDTA
Pentapeptide-4
Skin Conditioning
Camellia Sinensis Leaf Extract
Antimicrobial
Glutathione
Chamomilla Recutita Flower Extract
Masking
Phenoxyethanol
Preservative
Ethylhexylglycerin
Skin ConditioningSorbitol
Humectant
Rosmarinus Officinalis Leaf Extract
AntimicrobialWater, Propanediol, Butylene Glycol, Ethylhexyl Methoxycinnamate, Octocrylene, Ascorbyl Glucoside, Butyl Methoxydibenzoylmethane, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Titanium Dioxide, Centella Asiatica Extract, Ascorbic Acid, Sodium Hyaluronate, Panthenol, Polygonum Cuspidatum Root Extract, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Dicaprylyl Carbonate, Scutellaria Baicalensis Root Extract, Glycyrrhiza Glabra Root Extract, Gold, Disodium EDTA, Pentapeptide-4, Camellia Sinensis Leaf Extract, Glutathione, Chamomilla Recutita Flower Extract, Phenoxyethanol, Ethylhexylglycerin, Sorbitol, Rosmarinus Officinalis Leaf Extract
Water
Skin ConditioningGlycerin
Humectant
Propanediol
Solvent
Ethylhexyl Methoxycinnamate
UV Absorber
Butyl Methoxydibenzoylmethane
UV Absorber
Cucumis Sativus Fruit Extract
Emollient
Octocrylene
UV Absorber
Butylene Glycol
Humectant
Aloe Barbadensis Leaf Juice
Skin Conditioning
Polymethyl Methacrylate
Portulaca Oleracea Extract
Skin Conditioning
Sodium Hyaluronate
Humectant
Camellia Sinensis Leaf Extract
Antimicrobial
Ectoin
Skin Conditioning
Phenoxyethanol
Preservative
Acrylates Copolymer
Acrylates Crosspolymer
AbsorbentRoyal Jelly
Centella Asiatica Extract
Cleansing
Allantoin
Skin Conditioning
Panthenol
Skin Conditioning
Resveratrol
Antioxidant
Chitin
Abrasive
Disodium EDTA
Water, Glycerin, Propanediol, Ethylhexyl Methoxycinnamate, Butyl Methoxydibenzoylmethane, Cucumis Sativus Fruit Extract, Octocrylene, Butylene Glycol, Aloe Barbadensis Leaf Juice, Polymethyl Methacrylate, Portulaca Oleracea Extract, Sodium Hyaluronate, Camellia Sinensis Leaf Extract, Ectoin, Phenoxyethanol, Acrylates Copolymer, Acrylates Crosspolymer, Royal Jelly, Centella Asiatica Extract, Allantoin, Panthenol, Resveratrol, Chitin, Disodium EDTA
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Also known as Avobenzone, this ingredient is a chemical sunscreen filter that provides protection in the UV-A range.
Avobenzone is globally approved and is the most commonly used UV-A filter in the world.
Studies have found that avobenzone becomes ineffective when exposed to UV light (it is not photostable; meaning that it breaks down in sunlight). Because of this, formulations that include avobenzone will usually contain stabilizers such as octocrylene.
However, some modern formulations (looking at you, EU!) are able to stabilize avobenzone by coating the molecules.
Avobenzone does not protect against the UV-B range, so it's important to check that the sunscreen you're using contains other UV filters that do!
The highest concentration of avobenzone permitted is 3% in the US, and 5% in the EU.
Learn more about Butyl MethoxydibenzoylmethaneButylene 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 GlycolCamellia Sinensis Leaf Extract is derived from the leaves of the tea plant. Black tea, green tea, and oolong tea are all harvested from this plant.
This ingredient has many skin benefits:
This ingredient contains polyphenols, a strong antioxidant. Antioxidants help fight off molecules that damage skin cells.
On top of that, the antioxidants in green tea neutralize free-radicals from the sun. This gives the skin some extra UV protection, but should not replace sunscreen.
Many components of tea have anti-inflammatory properties.
Polyphenols and L-theanine help soothe the skin and reduce irritation. The caffeine in Camellia Sinensis Leaf Extract helps calm inflamed blood vessels.
Other compounds found in tea include: Vitamin Bs, linoleic acid, magnesium, calcium, iron, and zinc.
Research has shown both drinking Camellia Sinensis Leaf Tea and applying it to the skin can help boost skin elasticity and hydration. Studies also show using tea extract may reduce sebum, or oil, production.
Learn more about Camellia Sinensis Leaf ExtractCentella Asiatica Extract (Centella) is derived from an herb native to Southeast Asia. It is famous for its anti-inflammatory and soothing properties.
Centella is rich in antioxidants and amino acids, such as Madecassic Acid and Asiaticoside.
Studies show the compounds in centella help with:
The combination of all these properties makes centella effective at soothing, hydrating, and protecting the skin.
Other great components of centella include Vitamin A, vitamin C, several B vitamins, and Asiatic Acid.
Fun fact: Centella has been used as a medicine and in food for many centuries. As a medicine, it is used to treat burns, scratches, and wounds.
Learn more about Centella Asiatica ExtractDisodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAEthylhexyl Methoxycinnamate is an organic compound that provides UVB protection. It often goes by the more common name of octinoxate. It is created from methoxycinnamic acid and 2-ethylhexanol.
Ethylhexyl Methoxycinnamate absorbs UVB rays with wavelengths between 280-320 nm. UV absorbers protect your skin by using chemical reactions to convert UV rays into heat and energy.
UVB (290-320 nm) rays emit more energy than UVA rays. They are capable of damaging DNA, causing sunburns and are thought to be linked to skin cancer.
The state of Hawaii has banned sunscreens containing octinoxate due to its potential impact on coral reefs. More research is needed to bridge gaps in this research. The European Union allows higher levels of octinoxate in sunscreens than the US and Australia.
Ethylhexyl Methoxycinnamate is oil soluble. It is not stable and may lose efficacy when exposed to sunlight.
Learn more about Ethylhexyl MethoxycinnamateOctocrylene protects skin from sun damage. It absorbs UV-B with peak absorption of 304 nm. It is a common sunscreen ingredient and often paired with avobenzone, a UVA filter. This is because octocrylene stabilizes other sunscreen ingredients by protecting them from degradation when exposed to sunlight. Octocrylene is a photostable ingredient and loses about 10% of SPF in 95 minutes.
Octocrylene also acts as an emollient, meaning it helps skin retain moisture and softens skin. It is oil-soluble and hydrophobic, enhancing water-resistant properties in a product.
Those who are using ketoprofen, a topical anti-inflammatory drug, may experience an allergic reaction when using octocrylene. It is best to speak with a healthcare professional about using sunscreens with octocrylene.
The EU allows a maximum of these concentrations:
Learn more about OctocrylenePanthenol 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.
Learn more about PanthenolPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.Â
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.
Learn more about PropanediolSodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateWater. 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. Stay hydrated!
Learn more about WaterIngredient Ratings
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When to use
The Formula rx Hydrashield Vitamin C + Peptide Watery Gel Sunscreen SPF 50 28 ingredients
Azarine Hydrasoothe Sunscreen Gel SPF45 PA++++ 24 ingredients
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