Mecca Cosmetica Replenishing Niacinamide Serum Versus Medik8 Hydr8 B5 Intense
Updated on July 09, 2025
Overview
What they are
These products are both vegan, cruelty-free, and reef safe serums. They have a total of 5 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for dry skin, brightening skin, sensitive skin, scar healing and dark spots
Free From
They both do not contain any 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
Mecca Cosmetica Replenishing Niacinamide Serum 26 ingredients
Medik8 Hydr8 B5 Intense 43 ingredients
What's inside
What's inside
At a glance
Click on any of the items below to learn more
Mecca Cosmetica Replenishing Niacinamide Serum 26 ingredients
Medik8 Hydr8 B5 Intense 43 ingredients
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningNiacinamide
Smoothing
Butylene Glycol
Humectant
Cyclopentasiloxane
Emollient
Squalane
Emollient
Dimethicone
Emollient
Sodium Hyaluronate
Humectant
Biosaccharide Gum-1
Humectant
Citrus Nobilis Peel Oil
Masking
Squalene
Emollient
Allantoin
Skin Conditioning
Pelargonium Graveolens Oil
Masking
Olive Oil Decyl Esters
Maltodextrin
Absorbent
Acrylates/Beheneth-25 Methacrylate Copolymer
Carbomer
Emulsion StabilisingPhenyl Trimethicone
Skin Conditioning
Dimethiconol
Emollient
C12-15 Alkyl Benzoate
AntimicrobialDimethicone Crosspolymer
Emulsion Stabilising
Phenoxyethanol
Preservative
Benzoic Acid
Masking
Dehydroacetic Acid
Preservative
Caramel
Cosmetic ColorantAlcohol
Antimicrobial
Triethanolamine
BufferingWater, Niacinamide, Butylene Glycol, Cyclopentasiloxane, Squalane, Dimethicone, Sodium Hyaluronate, Biosaccharide Gum-1, Citrus Nobilis Peel Oil, Squalene, Allantoin, Pelargonium Graveolens Oil, Olive Oil Decyl Esters, Maltodextrin, Acrylates/Beheneth-25 Methacrylate Copolymer, Carbomer, Phenyl Trimethicone, Dimethiconol, C12-15 Alkyl Benzoate, Dimethicone Crosspolymer, Phenoxyethanol, Benzoic Acid, Dehydroacetic Acid, Caramel, Alcohol, Triethanolamine
Water
Skin ConditioningPanthenol
Skin Conditioning
Glyceryl Glucoside
Humectant
Propylene Glycol
Humectant
Sodium Hyaluronate
Humectant
Glycerin
Humectant
Sodium PCA
Humectant
Amelanchier Alnifolia Fruit Extract
Skin ConditioningUrea
Buffering
Calcium Pantothenate
Trehalose
Humectant
Taurine
BufferingCreatine
Skin ConditioningDiglycerin
Humectant
Acetyl Glucosamine
Skin ConditioningDaucus Carota Sativa Juice
Skin ConditioningGlycine Soja Seed Extract
Skin Conditioning
Lysine Hcl
Skin Conditioning
Alanine
MaskingArginine
Masking
Histidine Hcl
Skin ConditioningBiosaccharide Gum-1
Humectant
Phenoxyethanol
Preservative
Serine
Masking
Allantoin
Skin Conditioning
Proline
Skin ConditioningLactic Acid
Buffering
Ethylhexylglycerin
Skin ConditioningHydroxyacetophenone
Antioxidant
Hydrolyzed Wheat Protein
Skin ConditioningLysine
Skin ConditioningPCA
Humectant
Sorbitol
Humectant
Glutamic Acid
Humectant
Threonine
Valine
MaskingLeucine
Skin ConditioningGlycine
Buffering
Isoleucine
Skin ConditioningPhenylalanine
Masking
Potassium Sorbate
Preservative
Sodium Benzoate
Masking
Citric Acid
Buffering
Water, Panthenol, Glyceryl Glucoside, Propylene Glycol, Sodium Hyaluronate, Glycerin, Sodium PCA, Amelanchier Alnifolia Fruit Extract, Urea, Calcium Pantothenate, Trehalose, Taurine, Creatine, Diglycerin, Acetyl Glucosamine, Daucus Carota Sativa Juice, Glycine Soja Seed Extract, Lysine Hcl, Alanine, Arginine, Histidine Hcl, Biosaccharide Gum-1, Phenoxyethanol, Serine, Allantoin, Proline, Lactic Acid, Ethylhexylglycerin, Hydroxyacetophenone, Hydrolyzed Wheat Protein, Lysine, PCA, Sorbitol, Glutamic Acid, Threonine, Valine, Leucine, Glycine, Isoleucine, Phenylalanine, Potassium Sorbate, Sodium Benzoate, Citric Acid
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Allantoin is a soothing ingredient known for its protective and moisturizingg properties. Because of this, it is often added to products with strong active ingredients.
Studies show higher concentrations of this ingredient can promote wound healing.
Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity.
Learn more about AllantoinBiosaccharide Gum-1 is a sugar created by fermenting sorbitol (which usually comes from potato starch!). It is known for its soothing and moisturizing properties.
Manufacturer tests show this ingredient helped reduce irritation from lactic acid by almost half and kept skin hydrated long-term as a humectant
Beyond hydration, Biosaccharide Gum-1 gives formulas a silky, non-sticky feel.
This ingredient is gentle, versatile, and suitable for all skin types.
Fun fact: Similar sugars can be found naturally in fruits like apples and pears.
Learn more about Biosaccharide Gum-1Phenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.
Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.
These are some other common types of Hyaluronic Acid:
Learn more about Sodium HyaluronateWater. 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
Here's what our community thinks of the ingredients in these products.
When to use
Mecca Cosmetica Replenishing Niacinamide Serum 26 ingredients
Medik8 Hydr8 B5 Intense 43 ingredients
