Peter Thomas Roth Peptide Skinjection Amplified Wrinkle-Fix Serum Versus Mary & May 6 Peptide Complex Serum
Updated on July 01, 2024
Overview
What they are
These products are both reef safe serums. They have a total of 6 ingredients in common
Cool Features
They both contain peptides
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, reducing pores, scar healing and better texture
Free From
They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens 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
Peter Thomas Roth Peptide Skinjection Amplified Wrinkle-Fix Serum 39 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
Peter Thomas Roth Peptide Skinjection Amplified Wrinkle-Fix Serum 39 ingredients
Mary & May 6 Peptide Complex Serum 17 ingredients
Key Ingredients
Benefits
Concerns
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.
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 WaterButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
- It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
- It is a humectant, which means that it helps attract moisture into the skin.
- It helps improve product application.
- It has mild preservative properties.
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinCaprylyl 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 GlycolEthylhexylglycerin (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.
Carbomer 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.
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Peter Thomas Roth Peptide Skinjection Amplified Wrinkle-Fix Serum 39 ingredients
Mary & May 6 Peptide Complex Serum 17 ingredients

Reviews
Here's what our community thinks
Peter Thomas Roth Peptide Skinjection Amplified Wrinkle-Fix Serum 39 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