4AM SKIN Rest Serum Versus Undefined Beauty R&R Sun Serum SPF 50 PA++++
Updated on February 06, 2024
Overview
What they are
These products are both vegan and cruelty-free serums. They have a total of 10 ingredients in common
Cool Features
They both contain niacinamide and Vitamin E
Suited For
They're both likely to be good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any harsh alcohols, common allergens, 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
4AM SKIN Rest Serum 22 ingredients
Undefined Beauty R&R Sun Serum SPF 50 PA++++ 30 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
4AM SKIN Rest Serum 22 ingredients
Undefined Beauty R&R Sun Serum SPF 50 PA++++ 30 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningNiacinamide
Smoothing
Glycerin
Humectant
Propanediol
Solvent
Caprylic/Capric Triglyceride
Masking
Lespedeza Capitata Leaf/Stem Extract
Skin ConditioningCarthamus Tinctorius Oleosomes
Emollient
Ergothioneine
Antioxidant
Helianthus Annuus Extract
Emollient
Hydrolyzed Sodium Hyaluronate
Skin Conditioning
Lepidium Sativum Sprout Extract
Skin ConditioningOryza Sativa Bran Extract
Skin Conditioning
Palmitoyl Tripeptide-38
Skin Conditioning
Pentylene Glycol
Skin ConditioningPotassium Hydroxide
BufferingRosmarinus Officinalis Leaf Extract
AntimicrobialTocopherol
Antioxidant
Lecithin
Emollient
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingCaprylyl Glycol
EmollientEthylhexylglycerin
Skin ConditioningHydroxypropyl Cyclodextrin
MaskingWater, Niacinamide, Glycerin, Propanediol, Caprylic/Capric Triglyceride, Lespedeza Capitata Leaf/Stem Extract, Carthamus Tinctorius Oleosomes, Ergothioneine, Helianthus Annuus Extract, Hydrolyzed Sodium Hyaluronate, Lepidium Sativum Sprout Extract, Oryza Sativa Bran Extract, Palmitoyl Tripeptide-38, Pentylene Glycol, Potassium Hydroxide, Rosmarinus Officinalis Leaf Extract, Tocopherol, Lecithin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Caprylyl Glycol, Ethylhexylglycerin, Hydroxypropyl Cyclodextrin
Water
Skin ConditioningCaprylic/Capric Triglyceride
Masking
C12-15 Alkyl Benzoate
AntimicrobialPropanediol
Solvent
Tridecyl Salicylate
Skin ConditioningPolyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate
Emulsifying
Methylheptyl Isostearate
Skin ConditioningJojoba Esters
Emollient
Niacinamide
Smoothing
Nylon-12
Methylpropanediol
SolventSilica
Abrasive
Rubus Idaeus Seed Oil
Emollient
Tremella Fuciformis Sporocarp Extract
Antioxidant
Allantoin
Skin Conditioning
Bisabolol
Masking
Oryza Sativa Bran Extract
Skin Conditioning
Helianthus Annuus Extract
Emollient
Rosmarinus Officinalis Leaf Extract
AntimicrobialTocopherol
Antioxidant
Coco-Caprylate
Emollient
Caprylyl Glycol
EmollientPolyglyceryl-2 Dipolyhydroxystearate
Skin Conditioning
Hydrogenated Lecithin
Emulsifying
Lecithin
Emollient
Phenylpropanol
Masking
Sodium Chloride
Masking
Tetrasodium Glutamate Diacetate
Sodium Hydroxide
BufferingIron Oxides
Water, Caprylic/Capric Triglyceride, C12-15 Alkyl Benzoate, Propanediol, Tridecyl Salicylate, Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate, Methylheptyl Isostearate, Jojoba Esters, Niacinamide, Nylon-12, Methylpropanediol, Silica, Rubus Idaeus Seed Oil, Tremella Fuciformis Sporocarp Extract, Allantoin, Bisabolol, Oryza Sativa Bran Extract, Helianthus Annuus Extract, Rosmarinus Officinalis Leaf Extract, Tocopherol, Coco-Caprylate, Caprylyl Glycol, Polyglyceryl-2 Dipolyhydroxystearate, Hydrogenated Lecithin, Lecithin, Phenylpropanol, Sodium Chloride, Tetrasodium Glutamate Diacetate, Sodium Hydroxide, Iron Oxides
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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. Stay hydrated!
Learn more about WaterNiacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.
And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.
You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.
In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.
If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.
In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).
Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.
Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.
The type of niacinamide used in skincare is synthetically created.
Learn more about NiacinamidePropanediol 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.
Learn more about PropanediolThis ingredient is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
It helps thicken a product's formula and makes it easier to spread by dissolving clumping compounds.
Caprylic Triglyceride is made by combining glycerin with coconut oil, forming a clear liquid.
While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this.
Learn more about Caprylic/Capric TriglycerideHelianthus Annuus Extract comes from the common sunflower.
Sunflowers are rich in vitamin E. Studies show sunflowers contain antimicrobial and antioxidant properties.
The fatty acids found in sunflowers include (from highest amount to least): linoleic acid, myristic acid, palmitic acid, stearic acid, arachidic acid, oleic acid, and linolenic acid.
These fatty acids hydrate your skin. Emollients create a film on the skin to prevent moisture from escaping.
Learn more about Helianthus Annuus ExtractOryza Sativa Bran Extract comes from the outer layer of a rice kernel. It is a byproduct of milling rice, or the operation to produce a whole grain rice product.
This ingredient has moisturizing properties due to its components of polysaccharides and omega-3 fatty acids. It also contains calcium, selenium, phosphorus, iron, and zinc.
Oryza Sativa Bran Extract contains numerous antioxidants such as ferulic acid. Antioxidants help fight free-radical molecules. Free-radical molecules are capable of damaging our cells and other genetic material.
Learn more about Oryza Sativa Bran ExtractRosmarinus Officinalis Leaf Extract comes from rosemary. Rosemary is native to the Mediterranean.
While Rosmarinus Officinalis Leaf Oil can be volatile due to its fragrant properties, the fragrance components are usually removed in the leaf extract.
Rosemary Leaf Extract contains many antioxidants such as rosmarinic acid and caffeic acid. Rosemarinic acid, a compound found in rosemary leaf, has been found to help soothe skin conditions such as eczema and acne.
Learn more about Rosmarinus Officinalis Leaf ExtractTocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.
Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.
Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.
You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.
There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.
Learn more about TocopherolLecithin is a term for a group of substances found in the cell membranes of plants, animals, and humans. They are made up of mixture of phospholipids.
This ingredient has emollient and emulsifying properties.
As an emollient, lecithen helps soften the skin and creates a barrier to keep moisture in.
As an emulsifier, it also helps prevent water and oil ingredients from separating. Lecithin can also help ingredients be better absorbed by the skin.
This is because the phospholipids in lecithin produce liposomes. Liposomes help other ingredients get through the skin barrier.
Depending on the source of this ingredient, lecithin may not be fungal acne safe. This is because some sources of lecithin come from soybean oil, which may feed the malassezia yeast that feeds fungal acne.
We recommend reaching out to the brand you are purchasing from to inquire about the source of their lecithin.
Learn more about LecithinCaprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolIngredient Ratings
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