Mary & May Marine Collagen Serum Versus Mary & May 6 Peptide Complex Serum
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 7 ingredients in common
Suited For
They're both likely to be good for anti aging, dry skin, reducing pores and scar healing
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
Mary & May Marine Collagen Serum 8 ingredients
Mary & May 6 Peptide Complex Serum 17 ingredients
About this product
About this product
At a glance
Click on any of the items below to learn more
Mary & May Marine Collagen Serum 8 ingredients
Mary & May 6 Peptide Complex Serum 17 ingredients
Benefits
Benefits
Ingredients Side-by-side
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Glycereth-26 is a synthetic ingredient and polyethylene glycol ether of Glycerin. Glycerin is already naturally found in your skin and helps keep your skin moisturized.
It is a humectant and helps add texture to products. It can make your product thicker.
As a humectant, it helps draw moisture from the air to your skin. This helps your skin stay hydrated.
Learn more about Glycereth-261,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservatives
Arginine is an amino acid that is important for human development. Your body uses is it to produce hair keratin and skin collagen.
As a cosmetic ingredient, Arginine has antioxidant properties and can also help repair damaged skin. This ingredient is derived either synthetically or from animals.
Arginine isn't fungal acne safe when used in the presence of other lipids (fats, fatty acids, oils, esters, etc). Oils and fats occur naturally within the skin, so take caution when using Arginine if you're prone to fungal acne.
Learn more about ArginineCarbomer is a polymer of acrylic acid. Its main role is to create a gel consistency.
A high amount of carbomer can cause pilling or balling up of products. Don't worry, most products contain 1% or less of carbomer.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Caprylyl 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 GlycolAdenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.
Studies have found adenosine may also help with wound healing.
In skincare products, Adenosine is usually derived from yeast.
Learn more about AdenosineIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Mary & May Marine Collagen Serum 8 ingredients
Mary & May 6 Peptide Complex Serum 17 ingredients

Reviews
Here's what our community thinks
Mary & May Marine Collagen Serum 8 ingredients
Mary & May 6 Peptide Complex Serum 17 ingredients
Don’t get the bad reviews, yes, it is such thin and watery serum, but it delivers many peptides and visibly improves signs of aging. I do use other products for hydration and moisture and actually appreciate this doesn’t have any HA or other things as it’s easy to go overboard with those if you have sensitive skin. I like it, hasn’t caused any irritation or breakouts , does what it’s supposed to Show more