La Roche-Posay Effaclar Duo [+] SPF 30 - UK Versus MartiDerm Platinum Neck-Line Correct Serum
Updated on May 12, 2025
Overview
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing and dark spots
Free From
They both do not contain any common allergens, oils, parabens or sulfates
What's Inside
They both contain harsh alcohols, fragrances and silicones
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
La Roche-Posay Effaclar Duo [+] SPF 30 34 ingredients
MartiDerm Platinum Neck-Line Correct Serum 42 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
La Roche-Posay Effaclar Duo [+] SPF 30 34 ingredients
MartiDerm Platinum Neck-Line Correct Serum 42 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningOctocrylene
UV Absorber
Glycerin
Humectant
Homosalate
Skin Conditioning
Ethylhexyl Salicylate
UV Absorber
Alcohol Denat.
Antimicrobial
Niacinamide
Smoothing
Butyl Methoxydibenzoylmethane
UV Absorber
Dimethicone
Emollient
Sorbitan Stearate
Emulsifying
Silica
Abrasive
Isopropyl Lauroyl Sarcosinate
Skin ConditioningStyrene/Acrylates Copolymer
Propylene Glycol
Humectant
Potassium Cetyl Phosphate
EmulsifyingDiisopropyl Sebacate
EmollientPEG-20
HumectantPEG-8 Laurate
Emulsifying
Zinc PCA
Humectant
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin Conditioning
Oleamide
2-Oleamido-1,3-Octadecanediol
Skin ConditioningInulin Lauryl Carbamate
Emulsion StabilisingCarnosine
Skin Conditioning
Poloxamer 338
EmulsifyingAmmonium Polyacryloyldimethyl Taurate
Emulsion StabilisingDisodium EDTA
Sucrose Cocoate
Emulsifying
Capryloyl Salicylic Acid
Exfoliating
Xanthan Gum
EmulsifyingT-Butyl Alcohol
Perfuming
BHT
Antioxidant
Salicylic Acid
Masking
Parfum
Masking
Water, Octocrylene, Glycerin, Homosalate, Ethylhexyl Salicylate, Alcohol Denat., Niacinamide, Butyl Methoxydibenzoylmethane, Dimethicone, Sorbitan Stearate, Silica, Isopropyl Lauroyl Sarcosinate, Styrene/Acrylates Copolymer, Propylene Glycol, Potassium Cetyl Phosphate, Diisopropyl Sebacate, PEG-20, PEG-8 Laurate, Zinc PCA, Dimethicone/Vinyl Dimethicone Crosspolymer, Oleamide, 2-Oleamido-1,3-Octadecanediol, Inulin Lauryl Carbamate, Carnosine, Poloxamer 338, Ammonium Polyacryloyldimethyl Taurate, Disodium EDTA, Sucrose Cocoate, Capryloyl Salicylic Acid, Xanthan Gum, T-Butyl Alcohol, BHT, Salicylic Acid, Parfum
Water
Skin ConditioningCyclopentasiloxane
Emollient
Glycerin
Humectant
Glycine Soja Protein
EmulsifyingDimethicone
Emollient
Phenyl Trimethicone
Skin Conditioning
Polysilicone-11
Lepidium Sativum Sprout Extract
Skin ConditioningBis-PEG/PPG-14/14 Dimethicone
Emollient
Butylene Glycol
Humectant
Squalene
Emollient
Coco-Glucoside
CleansingGlaucine
Skin ConditioningLecithin
Emollient
Tocopherol
Antioxidant
Lentinus Edodes Extract
Skin ConditioningSoy Isoflavones
Skin ConditioningAscorbyl Palmitate
Antioxidant
Citric Acid
Buffering
Acetyl Tetrapeptide-2
Skin Conditioning
Ascorbic Acid
Antioxidant
Phytic Acid
Biotin
AntiseborrhoeicCyclohexasiloxane
Emollient
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingPEG-6 Caprylic/Capric Glycerides
EmulsifyingAmmonium Acryloyldimethyltaurate/Vp Copolymer
Polysorbate 80
Emulsifying
Alcohol
Antimicrobial
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin Conditioning
Disodium EDTA
PEG/PPG-18/18 Dimethicone
Emulsifying
Polysorbate 60
Emulsifying
Ethylhexylglycerin
Skin ConditioningCaprylyl Glycol
EmollientPEG-8
HumectantSodium Citrate
BufferingPentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
Parfum
Masking
Phenoxyethanol
Preservative
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
Water, Cyclopentasiloxane, Glycerin, Glycine Soja Protein, Dimethicone, Phenyl Trimethicone, Polysilicone-11, Lepidium Sativum Sprout Extract, Bis-PEG/PPG-14/14 Dimethicone, Butylene Glycol, Squalene, Coco-Glucoside, Glaucine, Lecithin, Tocopherol, Lentinus Edodes Extract, Soy Isoflavones, Ascorbyl Palmitate, Citric Acid, Acetyl Tetrapeptide-2, Ascorbic Acid, Phytic Acid, Biotin, Cyclohexasiloxane, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, PEG-6 Caprylic/Capric Glycerides, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Polysorbate 80, Alcohol, Dimethicone/Vinyl Dimethicone Crosspolymer, Disodium EDTA, PEG/PPG-18/18 Dimethicone, Polysorbate 60, Ethylhexylglycerin, Caprylyl Glycol, PEG-8, Sodium Citrate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Parfum, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Dimethicone is a type of synthetic silicone created from natural materials such as quartz.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
Learn more about DimethiconeThis ingredient is a silicone used to improve the texture of products and absorb oil. It does not get absorbed into the skin.
Like other silicones, Dimethicone/Vinyl Dimethicone Crosspolymer helps condition the skin by creating a barrier. In this sense, it can act as an emollient and trap moisture in.
This ingredient is a type of elastomer.
Learn more about Dimethicone/Vinyl Dimethicone CrosspolymerDisodium EDTA plays a role in making products more stable by aiding other preservatives.
It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.
Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.
Learn more about Disodium EDTAGlycerin 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 GlycerinParfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.
For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.
The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.
For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.
One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.
Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Parfum can also be used to mask or cover an unpleasant scent.
The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.
Learn more about ParfumWater. 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 WaterIngredient Ratings
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When to use
La Roche-Posay Effaclar Duo [+] SPF 30 34 ingredients
MartiDerm Platinum Neck-Line Correct Serum 42 ingredients
Reviews
Here's what our community thinks
