Versus

Rodan + Fields Redefine Intensive Renewing Serum Versus Medik8 Crystal Retinal 6

Serum
Serum
American Brand United States
British Brand United Kingdom

Updated on January 29, 2025

Overview

What they are

These products are both cruelty-free serums. They have a total of 1 ingredients in common

Cool Features

They both contain exfoliants and retinoid

Suited For

They're both likely to be good for fighting acne, anti aging, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture

Free From

They both do not contain any harsh alcohols, 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

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

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
Crystal Retinal 6

Water

Skin Conditioning

Caprylic/Capric Triglyceride

Masking

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconHelps brighten skin Icon

Isododecane

Emollient

Cetearyl Olivate

Not safe for Fungal Acne Icon

Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Emulsion Stabilising

Cetearyl Alcohol

Emollient
2 / 1 Fatty Alcohol IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

PPG-12/Smdi Copolymer

Emollient

Sorbitan Olivate

Emulsifying
Not safe for Fungal Acne Icon

Tocopheryl Acetate

Antioxidant
0 / 0 Vitamin E IconAntioxidant Icon

Titanium Dioxide

Cosmetic Colorant
0 / 0 Mineral UV Filter IconNon-Reef-Safe Icon

Eclipta Prostrata Extract

Skin Conditioning

Cyclodextrin

Absorbent

Squalane

Emollient
1 / 0 Helps hydrate Dry Skin Icon

Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer

Emulsion Stabilising

Phenoxyethanol

Preservative
Preservative Icon

Melia Azadirachta Leaf Extract

Skin Conditioning

Hydroxypropyl Methylcellulose

Emulsion Stabilising

Sodium Hyaluronate

Humectant
0 / 0 Hyaluronic Acid Icon

Tetrahexyldecyl Ascorbate

Antioxidant
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores IconHelps brighten skin Icon

Rubus Chamaemorus Seed Oil

Skin Conditioning
Oil IconNot safe for Fungal Acne Icon

Alumina

Abrasive
Exfoliant Icon

Isostearic Acid

Cleansing
Bad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Lecithin

Emollient

Polyglyceryl-3 Polyricinoleate

Emulsifying
Not safe for Fungal Acne Icon

Polyhydroxystearic Acid

Emulsifying
Not safe for Fungal Acne Icon

Stearic Acid

Cleansing
2-3 / 0 May worsen Oily Skin IconNot safe for Fungal Acne Icon

Pentylene Glycol

Skin Conditioning

Retinal

Skin Conditioning
Retinoid IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin IconMay worsen Rosacea Icon

Moringa Oleifera Seed Oil

Emollient
Oil IconNot safe for Fungal Acne Icon

Sodium Polyaspartate

Humectant

Climbazole

Antimicrobial
Preservative Icon

Disodium EDTA

Lonicera Japonica Flower Extract

Skin Conditioning

Lonicera Caprifolium Flower Extract

Perfuming
Fragrance Icon

Daucus Carota Sativa Seed Oil

Emollient
Oil Icon

Ethylhexylglycerin

Skin Conditioning

3-O-Ethyl Ascorbic Acid

Skin Conditioning
Vitamin C IconHelps reduce Skin Redness IconGood for Skin Texture IconGood for Minimizing Pores Icon

Dipteryx Odorata Bean Extract

Masking
Fragrance Icon

Hydroxyacetophenone

Antioxidant
Antioxidant Icon

Polysorbate 60

Emulsifying
Not safe for Fungal Acne Icon

Sorbitan Isostearate

Emulsifying
1-2 / 0 Not safe for Fungal Acne Icon

Vanilla Planifolia Fruit Extract

Skin Conditioning

Decylene Glycol

Skin Conditioning

1,2-Hexanediol

Skin Conditioning

BHT

Antioxidant
Antioxidant Icon

Coumarin

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Ingredients Explained

These ingredients are found in both products.

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

Skin Conditioning

Retinal is a form of retinoid. Retinoids are the gold-standard class of anti-aging ingredients.

Retinal has many benefits as other retinoids: improve skin texture, reduce large pores, reduce the effects of aging, reduce the visibility of dark spots, heal scars, and fight acne.

Studies show retinal may work at a faster rate than retinol due to its structure.

All retinoids have to be converted into retinoic acid before starting to work. Some retinoids take several steps of conversion before binding. Retinal is only one step away, making it more potent.

Like other retinoids, retinal may be irritating. It is best to ease into using this ingredient frequently.

Using the 'ramp up' method, start by using retinol once a week. This gives your skin time to adjust and decrease irritation. Once you feel ready, you can slowly increase the frequency of retinol use.

Using retinoids will increase sun-sensitivity in the first few weeks of use. Though studies show retinoids increase your skin's natural SPF with continuous use, it is best to always wear sunscreen and sun-protection.

Learn more about Retinal

When to use

4 Routines
0% use in am
100% use in pm
100% use every day
101 Routines
1% use in am
99% use in pm
64% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

Rodan + Fields Redefine Intensive Renewing Serum 11 ingredients

Redefine Intensive Renewing Serum hasn't been rated yet.
Rate it now

Medik8 Crystal Retinal 6 47 ingredients

3.5 /5
from 2 ratings
Expensive (2) Absorbs Well (1) Broke Me Out (1)
rehaylew's avatar

Rebecca

8 months ago
Review

Just about safe enough for me to use on my forehead and the tops of my cheeks, but any further down my face/neck it causes massive breakouts and fungal acne which takes months to get rid of. For the price, it's just not worth it.

#expensive
#broke me out
verenski's avatar

verenski

7 months ago
Review

Great retinal serum but not for dry skin. Could be a little bit irritating too! The price is also mindblowing! Too expensive! It has a nice vanilla like scent

#expensive
#absorbs well
#light scent