Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

First Aid Beauty Ultra Repair Hydra-Firm Night Cream Versus rhode Barrier Restore Cream

First Aid Beauty Ultra Repair Hydra-Firm Night Cream Versus rhode Barrier Restore Cream This anti-aging night moisturizer is formulated around Butyrospermum Parkii Butter and Niacinamide to soften the look of wrinkles and hydrate skin. This barrier-repair mois

First Aid Beauty Ultra Repair Hydra-Firm Night Cream Versus rhode Barrier Restore Cream

This anti-aging night moisturizer is formulated around Butyrospermum Parkii Butter and Niacinamide to soften the look of wrinkles and hydrate skin.

This barrier-repair moisturizer is formulated around Niacinamide and Squalane to strengthen the skin barrier and hydrate skin.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Caprylic/Capric Triglyceride

Butyrospermum Parkii Butter

Dimethicone

Glyceryl Stearate

C10-18 Triglycerides

Ethylhexyl Palmitate

Lactobacillus Ferment

Jojoba Esters

Cetyl Alcohol

Niacinamide

Spilanthes Acmella Flower Extract

Helianthus Annuus Seed Cera

Acacia Decurrens Flower Cera

Algae Extract

Palmitoyl Tripeptide-38

Sodium Hyaluronate

Avena Sativa Kernel Flour

Palmitoyl Hexapeptide-12

Palmitoyl Tetrapeptide-7

Camellia Sinensis Leaf Extract

Chrysanthemum Parthenium Extract

Glycyrrhiza Glabra Root Extract

Hydroxypropyl Cyclodextrin

Sodium Lactate

Butylene Glycol

PEG-75 Stearate

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Ceteth-20

Steareth-20

Polyglycerin-3

Carbomer

Polysorbate 20

Phenoxyethanol

Xanthan Gum

Tetrasodium EDTA

Sodium Hydroxide

Water, Glycerin, Caprylic/Capric Triglyceride, Butyrospermum Parkii Butter, Dimethicone, Glyceryl Stearate, C10-18 Triglycerides, Ethylhexyl Palmitate, Lactobacillus Ferment, Jojoba Esters, Cetyl Alcohol, Niacinamide, Spilanthes Acmella Flower Extract, Helianthus Annuus Seed Cera, Acacia Decurrens Flower Cera, Algae Extract, Palmitoyl Tripeptide-38, Sodium Hyaluronate, Avena Sativa Kernel Flour, Palmitoyl Hexapeptide-12, Palmitoyl Tetrapeptide-7, Camellia Sinensis Leaf Extract, Chrysanthemum Parthenium Extract, Glycyrrhiza Glabra Root Extract, Hydroxypropyl Cyclodextrin, Sodium Lactate, Butylene Glycol, PEG-75 Stearate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ceteth-20, Steareth-20, Polyglycerin-3, Carbomer, Polysorbate 20, Phenoxyethanol, Xanthan Gum, Tetrasodium EDTA, Sodium Hydroxide

Behenyl Alcohol

Xylitylglucoside

Squalane

Sodium Acrylates Copolymer

Acetyl Tetrapeptide-2

Palmitoyl Heptapeptide-27

Palmitoyl Oligopeptide-78

Palmitoyl Octapeptide-24

Anhydroxylitol

1,2-Hexanediol

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Xylitol

Lecithin

Ethylhexylglycerin

Glucose

Bisabolol

Teprenone

Polysorbate 60

Sorbitan Isostearate

Caprylyl Glycol

Euterpe Oleracea Fruit Extract

Potassium Sorbate

Citric Acid

Sorbic Acid

Lactic Acid/Glycolic Acid Copolymer

Tocopherol

Polyvinyl Alcohol

Water, Glycerin, Caprylic/Capric Triglyceride, Butyrospermum Parkii Butter, Behenyl Alcohol, Xylitylglucoside, Niacinamide, Squalane, Sodium Acrylates Copolymer, Acetyl Tetrapeptide-2, Palmitoyl Heptapeptide-27, Palmitoyl Oligopeptide-78, Palmitoyl Octapeptide-24, Phenoxyethanol, Anhydroxylitol, 1,2-Hexanediol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Xylitol, Lecithin, Ethylhexylglycerin, Glucose, Bisabolol, Sodium Hyaluronate, Teprenone, Polysorbate 60, Sorbitan Isostearate, Caprylyl Glycol, Euterpe Oleracea Fruit Extract, Potassium Sorbate, Citric Acid, Sorbic Acid, Lactic Acid/Glycolic Acid Copolymer, Tocopherol, Polyvinyl Alcohol, Sodium Hydroxide

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.

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.

Caprylic/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.

Though 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.

In practice, that translates to a long shelf life and a consistently elegant skin feel.

While 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.

Fractionated 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.

This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out.

This 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 at concentrations as low as 0.2%.

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.

Niacinamide 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.

Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).

It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.

On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.

Another perk of this ingredient is that it stays functional across a wide pH range (3-10).

You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.

Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.

Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.

Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.

Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.

In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.

Interestingly, the size of the molecule affects its behavior:

Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.

Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.

You'll typically see concentrations between 0.1-2% for this ingredient.

Sodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.

In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.

Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.

"Alkaline" refers to a high pH level. A low pH level would be considered acidic.

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 Side-by-side

  1. 01Caprylic/Capric Triglyceride
  2. 02Ozokerite
  3. 03Tapioca Starch
  4. 04Magnesium Hydroxide
  5. 05Cocos Nucifera Oil
  6. 06Colloidal Oatmeal
  7. 07Butyrospermum Parkii Butter
  8. 08Bisabolol
  9. 09Zingiber Officinale Root Extract
  10. 10Magnesium Carbonate
  11. 11Piroctone Olamine
  12. 12Caprylic/Capric Triglyceride, Ozokerite, Tapioca Starch, Magnesium Hydroxide, Cocos Nucifera Oil, Colloidal Oatmeal, Butyrospermum Parkii Butter, Bisabolol, Zingiber Officinale Root Extract, Magnesium Carbonate, Piroctone Olamine
  13. 13Stearyl Alcohol
  14. 14Isopropyl Palmitate
  15. 15Cetyl Esters
  16. 16Tribehenin
  17. 17Dimethicone/Vinyl Dimethicone Crosspolymer
  18. 18Silica
  19. 19Zinc Oxide
  20. 20Aloe Barbadensis Leaf Extract
Source · skinsort.com
02

Product index

Related product references

Product

First Aid Beauty Anti-Redness Serum

First Aid Beauty Anti-Redness Serum Ingredients in First Aid Beauty Anti-Redness Serum explained: benefits, concerns, and detailed analysis of 21 ingredients including Water, Butylene Glyco…

Source: skinsort.comView reference →
03

Comparison edit

Read side by side