Rodan + Fields Redefine Intensive Renewing Serum Versus Medik8 Crystal Retinal - 6
Updated on June 18, 2025
Overview
What they are
These products are both cruelty-free and reef safe 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
Rodan + Fields Redefine Intensive Renewing Serum 11 ingredients
Medik8 Crystal Retinal 41 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
Rodan + Fields Redefine Intensive Renewing Serum 11 ingredients
Medik8 Crystal Retinal 41 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningCaprylic/Capric Triglyceride
Masking
Glycerin
Humectant
Isododecane
EmollientCetearyl Olivate
Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingCyclodextrin
AbsorbentCetearyl Alcohol
Emollient
Sorbitan Olivate
Emulsifying
Tocopheryl Acetate
Antioxidant
Squalane
Emollient
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingHydroxyacetophenone
Antioxidant
3-O-Ethyl Ascorbic Acid
Skin Conditioning
Phenoxyethanol
Preservative
Hydroxypropyl Methylcellulose
Emulsion StabilisingSodium Hyaluronate
Humectant
Tetrahexyldecyl Ascorbate
Antioxidant
Rubus Chamaemorus Seed Oil
Skin Conditioning
Pentylene Glycol
Skin ConditioningDaucus Carota Sativa Seed Oil
Emollient
Retinal
Skin Conditioning
Alumina
Abrasive
Isostearic Acid
Cleansing
Lecithin
Emollient
Sodium Polyaspartate
HumectantPolyglyceryl-3 Polyricinoleate
Emulsifying
Lonicera Japonica Flower Extract
Skin ConditioningLonicera Caprifolium Flower Extract
Perfuming
Polyhydroxystearic Acid
Emulsifying
Disodium EDTA
Ethylhexylglycerin
Skin ConditioningStearic Acid
Cleansing
Polysorbate 60
Emulsifying
Sorbitan Isostearate
Emulsifying
BHT
Antioxidant
Vanilla Planifolia Fruit Extract
Skin Conditioning
Dipteryx Odorata Bean Extract
Masking
Coumarin
Perfuming
CI 14700
Cosmetic ColorantCI 77891
Cosmetic ColorantWater, Caprylic/Capric Triglyceride, Glycerin, Isododecane, Cetearyl Olivate, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Cyclodextrin, Cetearyl Alcohol, Sorbitan Olivate, Tocopheryl Acetate, Squalane, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyacetophenone, 3-O-Ethyl Ascorbic Acid, Phenoxyethanol, Hydroxypropyl Methylcellulose, Sodium Hyaluronate, Tetrahexyldecyl Ascorbate, Rubus Chamaemorus Seed Oil, Pentylene Glycol, Daucus Carota Sativa Seed Oil, Retinal, Alumina, Isostearic Acid, Lecithin, Sodium Polyaspartate, Polyglyceryl-3 Polyricinoleate, Lonicera Japonica Flower Extract, Lonicera Caprifolium Flower Extract, Polyhydroxystearic Acid, Disodium EDTA, Ethylhexylglycerin, Stearic Acid, Polysorbate 60, Sorbitan Isostearate, BHT, Vanilla Planifolia Fruit Extract, Dipteryx Odorata Bean Extract, Coumarin, CI 14700, CI 77891
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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 RetinalIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
Rodan + Fields Redefine Intensive Renewing Serum 11 ingredients
Medik8 Crystal Retinal 41 ingredients
Reviews
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