Medik8
Niacinamide PeptidesA serum built around Niacinamide, for barrier repair and smoothing.
A serum built around Niacinamide and Zinc salt, for barrier repair and hydration.
Brand price
USD 54.99 · checked 25 Sept 2026 · brand's site
Brand price
GBP 49.00 · checked 8 Oct 2026 · brand's site
At a Glance
They come out differently on Fragrance-free, Alcohol-free and Cruelty-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Fatty alcohol1
Waxy fatty alcohols used as emollients and thickeners; unrelated to drying alcohol.
Fatty alcohol1
Waxy fatty alcohols used as emollients and thickeners; unrelated to drying alcohol.
Benefits
Hydrating5
Boosts hydration and relieves dry, tight skin.
Dimethicone, Dipotassium Glycyrrhizate, Glycerin, Propylene Glycol, Tocopherol
Barrier Repair11
Strengthens and restores the skin's natural barrier.
Caprylyl Glycol, Cetearyl Alcohol, Dimethicone, Glycerin, Glycine Soja Oil, Neopentyl Glycol Dicaprate, Niacinamide, Octyldodecanol, Propylene Glycol, Sucrose Tristearate, Tocopherol
Hydrating8
Boosts hydration and relieves dry, tight skin.
Acetyl Glucosamine, Caprylic/Capric Triglyceride, Crambe Abyssinica Seed Oil, Dimethicone, Glycerin, Sodium Hyaluronate, Tocopherol, Zinc PCA
Barrier Repair10
Strengthens and restores the skin's natural barrier.
Behenyl Alcohol, Caprylic/Capric Triglyceride, Cetearyl Alcohol, Cetyl Palmitate, Crambe Abyssinica Seed Oil, Dimethicone, Glycerin, Glyceryl Stearate Citrate, Niacinamide, Tocopherol
Concerns
May Worsen Seborrheic Dermatitis7
May feed the yeast involved in seborrheic dermatitis.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Cetearyl Alcohol, Glycine Soja Oil, Hydrogenated Lecithin, Octyldodecanol, Sodium Stearoyl Glutamate, Sucrose Tristearate
May Worsen Keratosis Pilaris3
May clog follicles or strip skin prone to keratosis pilaris.
May Trigger Acne3
Can clog pores or trigger breakouts.
May Worsen Seborrheic Dermatitis13
May feed the yeast involved in seborrheic dermatitis.
Acetyl Glucosamine, Behenyl Alcohol, Cetearyl Alcohol, Cetyl Palmitate, Crambe Abyssinica Seed Oil, Glyceryl Stearate Citrate, Hydrogenated Lecithin, Palmitoyl Tetrapeptide-10, Polyglyceryl-3 Stearate, Polysorbate 60, Polysorbate 80, Sorbitan Isostearate, Sorbitan Stearate
May Worsen Keratosis Pilaris3
May clog follicles or strip skin prone to keratosis pilaris.
Ingredients Side-by-side
Emollient
Fragrance
0 / —
- Denatured alcohol
- May Worsen Dryness
- May Worsen Eczema
- May Worsen Irritation
- May Worsen Rosacea
Niacinamide (in both products)
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Hydroxypropyl Tetrahydropyrantriol
Skin Conditioning
Emollient
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Cetearyl Alcohol (in both products)
Emollient
2 / 1
- Fatty alcohol
- Fatty alcohols (Malassezia)
- May Trigger Acne
- May Worsen Keratosis Pilaris
- May Worsen Seborrheic Dermatitis
Skin Conditioning
Niacinamide (in both products)
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Skin Conditioning
- Fatty alcohols (Malassezia)
- Dark Spots
- Hydrating
- May Worsen Seborrheic Dermatitis
Emollient
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Skin Conditioning
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Aqua
Solvent
Niacinamide
Smoothing
Niacinamide is niacinamide.
Learn more about Niacinamide →Dimethicone
Antifoaming, Skin Conditioning, Emollient, Skin Protecting
Dimethicone is a silicone.
Learn more about Dimethicone →Cetearyl Alcohol
Emulsion Stabilising, Opacifying, Emollient, Cleansing, Emulsifying, Foam Boosting, Viscosity Controlling
Cetearyl Alcohol isn't fungal acne safe.
Learn more about Cetearyl Alcohol →Glycerin
Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care, Perfuming, Humectant, Skin Protecting, Solvent, Viscosity Controlling
Glycerin may be plant, synthetic or animal depending on the supplier.
Learn more about Glycerin →Carnosine
Skin Conditioning
L-histidine, N-beta-alanyl
Learn more about Carnosine →Hydrogenated Lecithin
Skin Conditioning, Emulsifying
Hydrogenated Lecithin isn't fungal acne safe.
Learn more about Hydrogenated Lecithin →Citric Acid
Buffering, Chelating, Fragrance
Citric Acid is an AHA.
Learn more about Citric Acid →Xanthan Gum
Binding, Emulsion Stabilising, Gel Forming, Skin Conditioning, Cleansing, Emulsifying, Viscosity Controlling
Xanthan gum
Learn more about Xanthan Gum →Tocopherol
Antioxidant, Fragrance, Skin Conditioning, Occlusive
Tocopherol is vitamin E.
Learn more about Tocopherol →
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