Eighth Day The Regenerative Serum
Westman Atelier Skin Activator Serum
Versus

Eighth Day The Regenerative Serum Versus Westman Atelier Skin Activator Serum

Serum
Serum
American Brand United States
American Brand United States

Updated on January 30, 2025

Overview

What they are

These products are both serums. They have a total of 0 ingredients in common

Cool Features

They both contain hyaluronic acid, niacinamide and peptides

Suited For

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

Free From

They both do not contain any harsh alcohols, common allergens, fragrances, oils, parabens, silicones 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.

New Comparison

Ingredient Info

Click any item below to learn more and see relevant ingredients

Eighth Day The Regenerative Serum 29 ingredients

Westman Atelier Skin Activator Serum 50 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

Eighth Day The Regenerative Serum 29 ingredients

Westman Atelier Skin Activator Serum 50 ingredients

Key Ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
The Regenerative Serum

Water

Skin Conditioning

Pentylene Glycol

Skin Conditioning

Sodium Cocoyl/Stearoyl (Alanine/Arginine/Asparagine/Aspartic Acid/Glutamic Acid/Glutamine/Glycine/Histidine/Isoleucine/Leucine/Lysine/Phenylalanine/Proline/Serine/Threonine/Tyrosine/Valine)

Emollient

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconGood for Scar Healing IconHelps brighten skin Icon

Hedychium Coronarium Root Extract

Masking

Tripeptide-1

Skin Conditioning
Peptide IconHelps with Anti-Aging Icon

Polygonum Aviculare Extract

Emollient

Honey

Humectant
Helps hydrate Dry Skin IconNot safe for Fungal Acne Icon

Nonapeptide-1

Skin Conditioning
Peptide Icon

Acetyl Heptapeptide-4

Humectant
Peptide IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Dark Spots Icon

Phytosphingosine

Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce irritation Icon

Sea Whip Extract

Skin Conditioning

Niacinamide

Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin Icon

Hydrolyzed Hyaluronic Acid

Humectant
Hyaluronic Acid IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin Icon

Aminobutyric Acid

Adenosine

Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Scar Healing Icon

Thioctic Acid

Antioxidant
Antioxidant IconGood for Scar Healing Icon

Glycolic Acid

Buffering
AHA 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

Bacillus

Skin Conditioning

Polysorbate 20

Emulsifying
0 / 0 Not safe for Fungal Acne Icon

Allantoin

Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Caprylyl Glycol

Emollient

Lecithin

Emollient
Helps hydrate Dry Skin Icon

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

1,2-Hexanediol

Skin Conditioning
Helps hydrate Dry Skin Icon

Dextran

Helps hydrate Dry Skin Icon

Phenoxyethanol

Preservative
Preservative Icon

Ethylhexylglycerin

Skin Conditioning

Xanthan Gum

Emulsifying

Water, Pentylene Glycol, Sodium Cocoyl/Stearoyl (Alanine/Arginine/Asparagine/Aspartic Acid/Glutamic Acid/Glutamine/Glycine/Histidine/Isoleucine/Leucine/Lysine/Phenylalanine/Proline/Serine/Threonine/Tyrosine/Valine), Glycerin, Hedychium Coronarium Root Extract, Tripeptide-1, Polygonum Aviculare Extract, Honey, Nonapeptide-1, Acetyl Heptapeptide-4, Phytosphingosine, Sea Whip Extract, Niacinamide, Hydrolyzed Hyaluronic Acid, Aminobutyric Acid, Adenosine, Thioctic Acid, Glycolic Acid, Bacillus, Polysorbate 20, Allantoin, Caprylyl Glycol, Lecithin, Butylene Glycol, 1,2-Hexanediol, Dextran, Phenoxyethanol, Ethylhexylglycerin, Xanthan Gum

Skin Activator Serum

Water

Skin Conditioning

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconGood for Scar Healing IconHelps brighten skin Icon

Pentylene Glycol

Skin Conditioning

Niacinamide

Smoothing
Niacinamide IconGood for Oily Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconHelps brighten skin Icon

Butylene Glycol

Humectant
1 / 0 Helps hydrate Dry Skin Icon

Morinda Citrifolia Fruit Juice

Skin Conditioning

Caprylic/Capric Triglyceride

Masking
Helps hydrate Dry Skin Icon

Propanediol

Solvent
Helps hydrate Dry Skin Icon

Lactobacillus Ferment

Skin Conditioning

Glyceryl Caprylate

Emollient

Polyglyceryl-10 Distearate

Emulsifying
Not safe for Fungal Acne Icon

Glyceryl Stearate

Emollient
1 / 0 Not safe for Fungal Acne Icon

Xanthan Gum

Emulsifying

Stearic Acid

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

Sorbitan Stearate

Emulsifying
0 / 1 Not safe for Fungal Acne Icon

Sclerotium Gum

Emulsion Stabilising

Lecithin

Emollient
Helps hydrate Dry Skin Icon

Pullulan

Saccharomyces Cerevisiae Extract

Skin Conditioning

Opuntia Ficus-Indica Fruit Extract

Skin Conditioning

Camellia Sinensis Leaf Extract

Antimicrobial
Antioxidant IconHelps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging Icon

Arginine

Masking
Good for Scar Healing IconNot safe for Fungal Acne Icon

Adenosine

Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce irritation IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Scar Healing Icon

Sodium Acetylated Hyaluronate

Humectant
Hyaluronic Acid Icon

Sodium Hyaluronate

Humectant
0 / 0 Hyaluronic Acid IconHelps hydrate Dry Skin Icon

Phenoxyethanol

Preservative
Preservative Icon

Cystoseira Tamariscifolia Extract

Skin Conditioning

Sodium Hyaluronate Crosspolymer

Humectant
Hyaluronic Acid IconHelps hydrate Dry Skin IconGood for Scar Healing Icon

Glutamine

Skin Conditioning

Ascorbyl Glucoside

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

Maltodextrin

Absorbent
Helps hydrate Dry Skin Icon

Olive Glycerides

Emulsifying
Not safe for Fungal Acne Icon

Caprylyl Glycol

Emollient

Sodium Benzoate

Masking
Preservative Icon

Silica

Abrasive
Exfoliant IconMay worsen Eczema IconMay worsen Rosacea Icon

Potassium Sorbate

Preservative
Preservative Icon

Hydrolyzed Sodium Hyaluronate

Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce irritation IconGood for Scar Healing Icon

Biotinoyl Hexapeptide-2 Amide

Skin Conditioning
Peptide Icon

Beta-Glucan

Skin Conditioning
Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconHelps with Anti-Aging IconGood for Scar Healing Icon

PCA

Humectant
Helps hydrate Dry Skin Icon

Myristyl Alcohol

Emollient
2 / 4 Fatty Alcohol Icon

Ceramide NP

Skin Conditioning
Ceramide IconHelps hydrate Dry Skin IconHelps reduce irritation IconHelps with Anti-Aging Icon

Ethylhexylglycerin

Skin Conditioning

Gluconolactone

Skin Conditioning
PHA IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin Icon

Titanium Dioxide

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

Mica

Cosmetic Colorant
May worsen Eczema Icon

Swertia Chirata Extract

Humectant

Polygonum Cuspidatum Root Extract

Antioxidant
Antioxidant Icon

Calcium Gluconate

Humectant

Tin Oxide

Abrasive
Exfoliant Icon

Water, Glycerin, Pentylene Glycol, Niacinamide, Butylene Glycol, Morinda Citrifolia Fruit Juice, Caprylic/Capric Triglyceride, Propanediol, Lactobacillus Ferment, Glyceryl Caprylate, Polyglyceryl-10 Distearate, Glyceryl Stearate, Xanthan Gum, Stearic Acid, Sorbitan Stearate, Sclerotium Gum, Lecithin, Pullulan, Saccharomyces Cerevisiae Extract, Opuntia Ficus-Indica Fruit Extract, Camellia Sinensis Leaf Extract, Arginine, Adenosine, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Phenoxyethanol, Cystoseira Tamariscifolia Extract, Sodium Hyaluronate Crosspolymer, Glutamine, Ascorbyl Glucoside, Maltodextrin, Olive Glycerides, Caprylyl Glycol, Sodium Benzoate, Silica, Potassium Sorbate, Hydrolyzed Sodium Hyaluronate, Biotinoyl Hexapeptide-2 Amide, Beta-Glucan, PCA, Myristyl Alcohol, Ceramide NP, Ethylhexylglycerin, Gluconolactone, Titanium Dioxide, Mica, Swertia Chirata Extract, Polygonum Cuspidatum Root Extract, Calcium Gluconate, Tin Oxide

Ingredient Ratings

Here's what our community thinks of the ingredients in these products.

The Regenerative Serum
10
10
10
liked
mixed
disliked
not rated
Unlock with Premium
Skin Activator Serum
10
10
10
liked
mixed
disliked
not rated
Unlock with Premium

When to use

Eighth Day The Regenerative Serum 29 ingredients

Westman Atelier Skin Activator Serum 50 ingredients

2 Routines
50% use in am
50% use in pm
100% use every day
7 Routines
71% use in am
29% use in pm
100% use every day
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