Skin science article
innisfree Collagen Peptide Firming Ampoule Cream Versus Olehenriksen Strength Trainer Peptide Boost Moisturizer
innisfree Collagen Peptide Firming Ampoule Cream Versus Olehenriksen Strength Trainer Peptide Boost Moisturizer This anti-aging moisturizer is formulated around Niacinamide and Copper Tripeptide-1 to soften the look of wrinkles. This barrier-repair moisturizer
innisfree Collagen Peptide Firming Ampoule Cream Versus Olehenriksen Strength Trainer Peptide Boost Moisturizer
This anti-aging moisturizer is formulated around Niacinamide and Copper Tripeptide-1 to soften the look of wrinkles.
This barrier-repair moisturizer is formulated around Niacinamide and Acetyl Hexapeptide-8 to strengthen the skin barrier and soften the look of wrinkles.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Butylene Glycol
Squalane
Methyl Trimethicone
Pentaerythrityl Tetraethylhexanoate
Dibutyl Adipate
Sucrose Polystearate
1,2-Hexanediol
Glyceryl Stearate
Sea Water
Niacinamide
Dipalmitoyl Hydroxyproline
Cetearyl Alcohol
Glyceryl Stearate Citrate
Lactobacillus Ferment Lysate
Palmitic Acid
Hydrogenated Polyisobutene
Stearic Acid
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Xanthan Gum
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Dextrin
Hyaluronic Acid
Hydrolyzed Extensin
Simmondsia Chinensis Seed Oil
Pentylene Glycol
Sodium Metaphosphate
Glyceryl Caprylate/Caprate
Polyglyceryl-10 Laurate
Tromethamine
Ethylhexylglycerin
Adenosine
Caprylyl Glycol
Artemisia Vulgaris Oil
Sorbitan Isostearate
Hydrogenated Lecithin
Theobroma Cacao Seed Extract
Sodium Hyaluronate
Santalum Album Oil
Propanediol
Mannitol
Achillea Millefolium Extract
Myristic Acid
Arachidic Acid
Glycine Max Polypeptide
Acrylates/Stearyl Methacrylate Copolymer
Hydrolyzed Hyaluronic Acid
Tremella Fuciformis Sporocarp Extract
Disodium EDTA
Sodium Hyaluronate Crosspolymer
Copper Tripeptide-1
Acetyl Tetrapeptide-2
Tocopherol
Acetyl Heptapeptide-4
Ceramide NP
Acetyl Tetrapeptide-11
Soluble Collagen
Sodium Acetylated Hyaluronate
Acetyl Hexapeptide-8
Sodium Hydroxide
Hexapeptide-9
Acetyl Octapeptide-3
Water, Glycerin, Butylene Glycol, Squalane, Methyl Trimethicone, Pentaerythrityl Tetraethylhexanoate, Dibutyl Adipate, Sucrose Polystearate, 1,2-Hexanediol, Glyceryl Stearate, Sea Water, Niacinamide, Dipalmitoyl Hydroxyproline, Cetearyl Alcohol, Glyceryl Stearate Citrate, Lactobacillus Ferment Lysate, Palmitic Acid, Hydrogenated Polyisobutene, Stearic Acid, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Dextrin, Hyaluronic Acid, Hydrolyzed Extensin, Simmondsia Chinensis Seed Oil, Pentylene Glycol, Sodium Metaphosphate, Glyceryl Caprylate/Caprate, Polyglyceryl-10 Laurate, Tromethamine, Ethylhexylglycerin, Adenosine, Caprylyl Glycol, Artemisia Vulgaris Oil, Sorbitan Isostearate, Hydrogenated Lecithin, Theobroma Cacao Seed Extract, Sodium Hyaluronate, Santalum Album Oil, Propanediol, Mannitol, Achillea Millefolium Extract, Myristic Acid, Arachidic Acid, Glycine Max Polypeptide, Acrylates/Stearyl Methacrylate Copolymer, Hydrolyzed Hyaluronic Acid, Tremella Fuciformis Sporocarp Extract, Disodium EDTA, Sodium Hyaluronate Crosspolymer, Copper Tripeptide-1, Acetyl Tetrapeptide-2, Tocopherol, Acetyl Heptapeptide-4, Ceramide NP, Acetyl Tetrapeptide-11, Soluble Collagen, Sodium Acetylated Hyaluronate, Acetyl Hexapeptide-8, Sodium Hydroxide, Hexapeptide-9, Acetyl Octapeptide-3
Dicaprylyl Carbonate
Methylpropanediol
Stearyl Alcohol
Mangifera Indica Seed Butter
Acetyl Hexapeptide-1
Acetyl Dipeptide-1 Cetyl Ester
Palmitoyl Tripeptide-1
Palmitoyl Tetrapeptide-7
Carnosine
Ceramide AP
Ceramide EOP
Collagen
Serine
Alanine
Glycine
Glutamic Acid
Lysine Hcl
Threonine
Arginine
Proline
Linoleic Acid
Linolenic Acid
Sodium PCA
Sodium Lactate
Panthenol
Tocopheryl Acetate
Betaine
PCA
Cyanocobalamin
Xylitol
Anhydroxylitol
Xylitylglucoside
Sorbitan Olivate
Carbomer
Hydroxyethylcellulose
Cetearyl Olivate
Sorbitan Laurate
Phytosphingosine
Cholesterol
Polysorbate 60
Hydroxyacetophenone
Glycine Soja Oil
Polysorbate 20
Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer
Dimethicone
Sodium Phytate
Sodium Lauroyl Lactylate
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Leuconostoc/Radish Root Ferment Filtrate
Citric Acid
Phenoxyethanol
Parfum
Citral
Limonene
Linalool
Water, Propanediol, Dicaprylyl Carbonate, Glycerin, Methylpropanediol, Cetearyl Alcohol, Stearyl Alcohol, Mangifera Indica Seed Butter, Niacinamide, Acetyl Hexapeptide-1, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Acetyl Tetrapeptide-2, Acetyl Dipeptide-1 Cetyl Ester, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Carnosine, Ceramide NP, Ceramide AP, Ceramide EOP, Collagen, Serine, Alanine, Glycine, Glutamic Acid, Lysine Hcl, Threonine, Arginine, Proline, Hyaluronic Acid, Sodium Hyaluronate, Linoleic Acid, Linolenic Acid, Sodium PCA, Sodium Lactate, Panthenol, Tocopherol, Tocopheryl Acetate, Betaine, PCA, Cyanocobalamin, Xylitol, Anhydroxylitol, Xylitylglucoside, Sorbitan Olivate, Carbomer, Hydroxyethylcellulose, Xanthan Gum, Cetearyl Olivate, Sorbitan Laurate, Phytosphingosine, Cholesterol, Polysorbate 60, Butylene Glycol, Hydroxyacetophenone, Glycine Soja Oil, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Polysorbate 20, Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer, Dimethicone, Sodium Phytate, Sodium Lauroyl Lactylate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Leuconostoc/Radish Root Ferment Filtrate, Citric Acid, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol, Parfum, Citral, Limonene, Linalool
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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.
Acetyl Hexapeptide-8 (also known as Argireline) is a synthetic hexapeptide that is often called a "topical Botox alternative".
It works by mimicking how Botox relaxes muscles; it interferes with the signaling process that tells your facial muscles to contract. This can help soften expression lines like forehead wrinkles or crow's feet over time.
The comparison to Botox does have limits because the molecule is water-loving and relatively large.
Acetyl Hexapeptide-8 has a hard time absorbing deeply enough through the skin's outer barrier to actually reach the muscles.
So whether it truly works the way Botox does at a biological level is still up for debate, but early clinical outcomes are fairly encouraging.
A 12 week human study of a multi-ingredient regimen containing this ingredient saw:
While some studies have observed improvements in wrinkle appearance, it is important to note that more consistent results are seen in multi-ingredient formulations (vs just Acetyl Hexapeptide-8 alone).
Some research studies also used higher concentrations (up to 10%) while this ingredient is usually found in concentrations up to 0.005% in leave-on formulations.
Acetyl Octapeptide-3 is a synthetic peptide also commonly known as SNAP-8. It is a lab-made peptide often marketed as a gentler, topical alternative to Botox.
It works by mimicking part of a protein involved in muscle contractions, which may help relax facial tension and reduce the appearance of fine lines (mostly around the eyes and forehead).
It’s considered a “next-gen” version of Argireline (Acetyl Hexapeptide-8), an older peptide with more research behind it that also supports collagen production.
SNAP-8 showed slightly better results than Argireline in one small manufacturer-funded study, but there’s limited independent research. Plus, most tests use concentrations higher than what’s typically found in skincare products.
This ingredient might offer a subtle smoothing effect but it won't don’t deliver the dramatic results of actual Botox injections.
Think of it more like a supporting actor in your skincare lineup.
This peptide is more commonly known as Thymulen 4 BG.
It is derived from a youth hormone called thymopoietin. Thymopoietin helps regulate the immune system and decreases naturally with age.
According to the manufacturer, this peptide boosts the skin's immune defenses and regenerates the outer layers of skin.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken, emulsify, and improve the texture of products.
As an emulsifier, it helps stabilize oil-in-water emulsions to give products an elegant feel when applied.
It can also form a thin protective film on skin. One study found that a formula using this polymer helped slow down how quickly other ingredients (like DEET) were absorbed through skin.
A 2024 study of over 1,300 patients confirmed that sensitization to this ingredient is rare. It is also non-mutagenic and has a clean track record.
Butylene 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.
Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Ceramide NP (formerly known as Ceramide 3) is one of the skin's naturally occurring lipids.
Since ceramides are the major lipid components of the skin, they are crucial for maintaining skin barrier and hydration. Ceramide NP most closely mirrors the dominant kind in human skin amongst ceramide subtypes.
This ceramide works by slotting into gaps within the stratum corneum's lipid matrix to limit trans-epidermal water loss (TEWL) and shield the skin against external irritants.
A study with 312 patients found that using a ceramide-containing routine for 4 weeks reduced the severity of atopic dermatitis by over 61%.
Another clinical study in subjects aged 60 and older found that a ceramide body wash and moisturizer improved skin dryness and itchy skin in 15 days.
Overall, ceramides are considered non-irritating and safety tests have found little to no observable adverse effects from using this ingredient.
Ceramide NP is usually sourced from plants (like soybean or rice bran), or produced synthetically.
Cetearyl alcohol is a waxy mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is an emollient and emulsifier.
Despite 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.
It plays several roles in a formula:
Typical 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.
Multiple assessments have found it to be non-irritating and non-sensitizing to most people.
However, there have been some cases of allergic contact dermatitis in patients with chronically compromised skin barriers.
Cetearyl 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.
Here'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.
Remember 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.
This ingredient is not fungal acne safe. Cetearyl alcohol is a fatty alcohol with chain lengths that fall within the range that Malassezia can metabolize.
A 2019 study has also observed Malassezia growth in the presence of this ingredient, confirming it to be not-fungal acne safe.
Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
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.
Hyaluronic acid (HA) is a glycosaminoglycan (basically a long sugar chain) that your skin already makes on its own. In your skin, HA lives in the extracellular matrix and acts as the body's moisture reservoir.
Topically, HA is a humectant that binds water and helps skin look more plump, smooth, and hydrated.
The only catch is that HA isn't a single thing; it actually comes in a wide range of molecular weights (~50 - 2,000+ kDA) and size matters.
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
This is why the best HA serums blend the two sizes together so you get the best of both worlds.
The majority of cosmetic HA is produced by bacterial fermentation, typically using Streptococcus or Bacillus strains. Typical use levels in skincare sit around 0.1-2%.
A clinical study using a 0.2% low-molecular weight HA gel showed improvement in facial seborrheic dermatitis with excellent tolerance.
These are some other common types of Hyaluronic Acid:
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.
Propanediol 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.
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:
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.
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.
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!
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.