Peptide Skincare & BeautySkin science and ingredient guides

Skin science article

Mary & May Calendula Peptide Ageless Sleeping Mask Versus The Ordinary "Buffet" + Copper Peptides 1%

Mary & May Calendula Peptide Ageless Sleeping Mask Versus The Ordinary "Buffet" + Copper Peptides 1% This anti-aging overnight mask is formulated around Acetyl Hexapeptide-8 and Copper Tripeptide-1 to soften the look of wrinkles and refine skin texture. This a

Mary & May Calendula Peptide Ageless Sleeping Mask Versus The Ordinary "Buffet" + Copper Peptides 1%

This anti-aging overnight mask is formulated around Acetyl Hexapeptide-8 and Copper Tripeptide-1 to soften the look of wrinkles and refine skin texture.

This anti-aging serum is formulated around Copper Tripeptide-1 and Lactococcus Ferment Lysate to soften the look of wrinkles and strengthen the skin barrier.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Alcohol Denat.

Methylpropanediol

1,2-Hexanediol

Betaine

Dipropylene Glycol

Gardenia Taitensis Callus Extract

Oak Root Extract

Tremella Fuciformis Extract

Centella Asiatica Extract

Ficus Carica Fruit Extract

Orchid Leaf/Root/Stem Extract

Chamomilla Recutita Extract

Chrysanthemum Parthenium Extract

Hydrogenated Lecithin

Sodium Hyaluronate

Panthenol

Acrylates/C10-30 Alkyl Acrylate Crosspolymer

Glycerin

Tromethamine

Butylene Glycol

Polyglyceryl-10 Laurate

Dextrin

Sodium Phytate

Ceramide NP

Tocopherol

Acetyl Hexapeptide-8

Acetyl Octapeptide-3

Acetyl Tetrapeptide-2

Oligopeptide-6

Tripeptide-1

Copper Tripeptide-1

Hexapeptide-2

Dipeptide-2

Acetyl Tetrapeptide-3

Acetyl Tripeptide-1

Hexapeptide-9

Tripeptide-2

Nonapeptide-1

Pentapeptide-3

Tripeptide-3

Alanine/Histidine/Lysine Polypeptide Copper Hcl

Dipeptide-4

Acetyl Tetrapeptide-5

Palmitoyl Dipeptide-7

Palmitoyl Hexapeptide-12

Palmitoyl Tripeptide-1

Palmitoyl Tripeptide-5

Palmitoyl Pentapeptide-4

Dipeptide Diaminobutyroyl Benzylamide Diacetate

Palmitoyl Tetrapeptide-7

Guaiazulene

Parfum

Ethylhexylglycerin

Water, Alcohol Denat., Methylpropanediol, 1,2-Hexanediol, Betaine, Dipropylene Glycol, Gardenia Taitensis Callus Extract, Oak Root Extract, Tremella Fuciformis Extract, Centella Asiatica Extract, Ficus Carica Fruit Extract, Orchid Leaf/Root/Stem Extract, Chamomilla Recutita Extract, Chrysanthemum Parthenium Extract, Hydrogenated Lecithin, Sodium Hyaluronate, Panthenol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Glycerin, Tromethamine, Butylene Glycol, Polyglyceryl-10 Laurate, Dextrin, Sodium Phytate, Ceramide NP, Tocopherol, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Acetyl Tetrapeptide-2, Oligopeptide-6, Tripeptide-1, Copper Tripeptide-1, Hexapeptide-2, Dipeptide-2, Acetyl Tetrapeptide-3, Acetyl Tripeptide-1, Hexapeptide-9, Tripeptide-2, Nonapeptide-1, Pentapeptide-3, Tripeptide-3, Alanine/Histidine/Lysine Polypeptide Copper Hcl, Dipeptide-4, Acetyl Tetrapeptide-5, Palmitoyl Dipeptide-7, Palmitoyl Hexapeptide-12, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-5, Palmitoyl Pentapeptide-4, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Palmitoyl Tetrapeptide-7, Guaiazulene, Parfum, Ethylhexylglycerin

Lactococcus Ferment Lysate

Pentapeptide-18

Palmitoyl Tripeptide-38

Acetylarginyltryptophyl Diphenylglycine

Sodium Hyaluronate Crosspolymer

Allantoin

Glycine

Alanine

Serine

Valine

Isoleucine

Proline

Threonine

Histidine

Phenylalanine

Arginine

Aspartic Acid

Trehalose

Fructose

Glucose

Maltose

Urea

Sodium PCA

PCA

Sodium Lactate

Citric Acid

Hydroxypropyl Cyclodextrin

Sodium Chloride

Sodium Hydroxide

Pentylene Glycol

Acacia Senegal Gum

Xanthan Gum

Carbomer

Polysorbate 20

Dimethyl Isosorbide

Sodium Benzoate

Caprylyl Glycol

Phenoxyethanol

Chlorphenesin

Water, Glycerin, Lactococcus Ferment Lysate, Copper Tripeptide-1, Acetyl Hexapeptide-8, Pentapeptide-18, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-38, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Acetylarginyltryptophyl Diphenylglycine, Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate, Allantoin, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Arginine, Aspartic Acid, Trehalose, Fructose, Glucose, Maltose, Urea, Sodium PCA, PCA, Sodium Lactate, Citric Acid, Hydroxypropyl Cyclodextrin, Sodium Chloride, Sodium Hydroxide, Butylene Glycol, Pentylene Glycol, Acacia Senegal Gum, Xanthan Gum, Carbomer, Polysorbate 20, Dimethyl Isosorbide, Sodium Benzoate, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol, Chlorphenesin

Reviews

Be the first to review

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.

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.

Copper Tripeptide-1 (GHK-Cu) is a skin repairing ingredient known for its ability to boost collagen, improve firmness, and support skin regeneration.

It is a complex made up of a naturally occurring peptide (glycine-histidine-lysine) and copper, an essential trace element.

While studying wound healing, researchers noticed GHK-Cu stimulated hair follicle enlargement and growth by keeping hair in its active growth phase longer. This has made it a promising ingredient for hair regrowth treatments.

Some people have reported increased facial hair. While GHK-Cu can make your hair follicles bigger, it usually doesn’t turn soft, barely-visible facial hairs into thick, dark ones.

Anecdotal reports suggest that overusing copper peptides might lead to premature aging due to excess free copper or enzyme imbalances. This claim isn’t backed by large-scale studies.

Unfortunately, there are limited human studies for this ingredient. While early results are promising, many studies are either small, in-vitro, or not rigorously controlled.

For example, there is a 1998 study that explored the effects of copper tripeptide, vitamin C, tretinoin, and melatonin on skin repair and collagen synthesis.

After one month, increased procollagen production was seen in 7 out of 10 participants using copper tripeptide (more than those using vitamin C, melatonin, or tretinoin.

While the study was exploratory, it offers early evidence that copper tripeptide may support collagen production. Larger, well-designed trials are still needed to confirm its potential and understand individual responses.

Read more about other common types of peptides here:

This small molecule peptide has similar benefits to Argireline, the "botox" peptide.

According to the manufacturer, this peptide mimics snake venom to freeze muscles. This prevents muscle movement and contractions to prohibit the formation of fine lines and wrinkles.

While this seems promising, research is lacking in proving this ingredient to be as effective as botox.

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.

Palmitoyl Tetrapeptide-7 (formerly Palmitoyl Tetrapeptide-3) is a synthetic peptide. Its main job is to fight what researchers call "inflammaging".

"Inflammaging" is the slow, low-grade chronic inflammation that quietly breaks down collagen as we age.

This ingredient calms down a specific inflammation signal in your skin cells (called IL-6). When left unchecked, this signal triggers enzymes that break down collagen and elastin.

Clinical testing showed statistically significant improvements in:

Studies also found the more of this ingredient used, the more your skin produces Collagen I, fibronectin, and hyaluronic acid.

You'll likely see this ingredient paired with Palmitoyl Tripeptide-1 in the well-known Matrixyl 3000 complex for enhanced anti-aging effects.

A 3% concentration applied twice daily for two months showed meaningful skin rejuvenation results in clinical panels.

Fungal acne note: Usually a palmitic acid component can feed Malassezia in unbound form, but here is is covalently bonded to the peptide. This means it is very difficult for Malassezia to access, and therefore very unlikely to cause fungal acne.

Palmitoyl Tripeptide-1 (aka Pal-GHK) is a synthetic signal peptide made of three amino acids attached to palmitic acid.

That fatty acid attachment is the key: it boosts the peptide's ability to penetrate the skin barrier. This puts it closer to the dermal cells where it can actually make a difference.

Once there, it acts as a matrikine, a signaling peptide that prompts fibroblasts to produce more collagen, fibronectin, and hyaluronic acid.

In vitro studies show it can boost collagen production in skin cells even when UV-damaged skin samples were treated with it at a tiny concentration (it almost fully restored dermal collagen at 5ppm). It achieved this at 100x lower concentration than retinoic acid, which needed 500 ppm to do the same thing.

Human clinical data is promising, but modest:

A study of 23 female volunteers found a small but statistically significant increase (~4%) in skin thickness after treatment at 4 ppm.

A separate small trial of 15 women showed statistically significant reductions in wrinkle length, depth, and skin roughness after applying it twice daily for four weeks.

You'll likely see Pal-GHK paired with Palmitoyl Tetrapeptide-7 as part of the Matrixyl 3000 complex.

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.

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.

02

Product index

Related product references

03

Comparison edit

Read side by side