Versus

Rhonda Allison Growth Factor Serum Versus ZO Skin Health Growth Factor Serum

Serum
Serum
American Brand United States
American Brand United States

Updated on August 23, 2024

Overview

What they are

These products are both reef safe serums. They have a total of 3 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 and scar healing

Free From

They both do not contain any parabens

What's Inside

They both contain fragrances

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

Click any item below to learn more and see relevant ingredients

About this product

About this product

At a glance

Click on any of the items below to learn more

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Growth Factor Serum

Ingredients Explained

These ingredients are found in both products.

Ingredients higher up in an ingredient list are typically present in a larger amount.

Humectant, Skin Conditioning, Skin Protecting

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 Glycerin
Skin Conditioning, Solvent

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 Water
Skin Conditioning

Phospholipids are naturally found in our skin as they are the main component of cell membranes. Phospholipids have humectant, emollient, antioxidant properties.

Phospholipids are complex lipids that contain glycerin, two fatty acids, and a phosphate group. Some foods that contain phospholipids include soybeans and milk. The phospholipids found in soy come from Lecithin. This ingredient can also be synthetically created.

Due to their hygroscopic nature, they act as both humectants and emollients. Humectants draw moisture from the air to your skin, while emollients help trap moisture in.

The phospholipids in our skin can be naturally depleted. Replenishing the phospholipids in our skin can help hydrate your skin.

Studies show phospholipids display antioxidant activity and may help with reducing the signs of aging.

This ingredient is non-occlusive.

Some types of phospholipids:

Learn more about Phospholipids

When to use

1 Routine
0% use in am
100% use in pm
100% use every day
46 Routines
22% use in am
78% use in pm
96% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Rhonda Allison Growth Factor Serum 11 ingredients

Growth Factor Serum hasn't been rated yet.
Rate it now

ZO Skin Health Growth Factor Serum 34 ingredients

5.0 /5
from 2 ratings
Absorbs Well (1) Expensive (1) Hydrating (1)
michelle_mabelle's avatar

Michelle MaBelle

7 months ago
Review

TL;DR: Very soothing, VERY expensive, but works VERY well. Strong perfume smell you need to get used to.

...This works and I'm MAD about it.

I got suckered into this at my plastic surgeon's office during a laser consult by the esthetician, and...$168 later walked out with it thinking "WHAT HAVE I DONE?" Committed, I begrudgingly tried this praying I'd hate it so I wouldn't have to repurchase Show more

#expensive
#hydrating
#light
#absorbs well