Jack Black Protein Booster Skin Serum

Jack Black

Where to buy Possibly in stock

About this product

The Jack Black Protein Booster Skin Serum is a serums, essence, ampoule. Our analysis of its 37 ingredients (33 low-risk) rates it Excellent (96/100). Based on its ingredients, it looks well-suited to oily / acne-prone and dry skin.

Vegan-friendly Reef-safe

Summarised from our ingredient analysis — not brand marketing copy.

At a glance

Type
Serums, Essence, Ampoules
Ingredients
37
Low-risk
33
Fragrance
Fragrance-free
Origin
United States

The evidence

Quick Product Notes

Paraben-Free Sulfate-Free Alcohol-Free Silicone-Free EU Allergen-Free Fungal Acne (Malassezia) Safe

Notable Effects & Ingredients

No Notable Effects & Ingredients

Ingredients Related to Skin Types

Good   Bad — tap a skin type to see which ingredients · estimated from ingredient functions
Dry Skin 11/9
Good for dry skin
Linum Usitatissimum (Linseed) Seed Oil Zea Mays (Corn) Oil Caprylic/Capric Triglyceride Caprylyl Glycol Butylene Glycol Sodium Hyaluronate Glycerin Cocos Nucifera (Coconut) Oil Glycine Soja (Soybean) Oil Simmondsia Chinensis (Jojoba) Seed Oil Camellia Sinensis Leaf Extract
Caution for dry skin
Sodium Polystyrene Sulfonate Zea Mays (Corn) Oil Lonicera Caprifolium (Honeysuckle) Flower Extract Xanthan Gum Glycerin Alcohol Camellia Sinensis Leaf Extract Polysorbate 20 Hamamelis Virginiana (Witch Hazel) Water
Oily/Acne-Prone Skin 4/2
Good for oily/acne-prone skin
Lonicera Caprifolium (Honeysuckle) Flower Extract Alcohol Camellia Sinensis Leaf Extract Hamamelis Virginiana (Witch Hazel) Water
Caution for oily/acne-prone skin
Linum Usitatissimum (Linseed) Seed Oil Zea Mays (Corn) Oil
Sensitive Skin 6/19
Good for sensitive skin
Ascorbyl Palmitate Glycerin Glycine Soja (Soybean) Oil Camellia Sinensis Leaf Extract Hamamelis Virginiana (Witch Hazel) Water Aloe Barbadensis Leaf Juice
Caution for sensitive skin
Rosmarinus Officinalis (Rosemary) Leaf Oil Pelargonium Graveolens Flower Oil Linum Usitatissimum (Linseed) Seed Oil Ascorbyl Palmitate Ormenis Multicaulis Oil Zea Mays (Corn) Oil Lonicera Caprifolium (Honeysuckle) Flower Extract Caprylic/Capric Triglyceride Butylene Glycol Glycerin Cocos Nucifera (Coconut) Oil Glycine Soja (Soybean) Oil Taurine Retinyl Palmitate (Vitamin A) Citric Acid Alcohol Camellia Sinensis Leaf Extract Potassium Sorbate Phenoxyethanol

Ingredients list

37 total
Lower hazard (1) Higher hazard (9)
All37 Skin Conditioning27 Masking12 Fragrance11 Solvent7 Emollient7 Humectant6 Emulsion Stabilising6 Viscosity Controlling6
EWG CIR Ingredient Name & Cosmetic Functions Notes
1
Water
(Solvent)
2
A
Glycerin
(Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care Agent, Oral Health Care Drug, Skin Protecting, Viscosity Decreasing Agent, Perfuming, Solvent)
Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
1
A
Caprylic/Capric Triglyceride
(Emollient, Masking, Perfuming, Skin Conditioning, Solvent)
B
Aloe Barbadensis Leaf Juice
(Skin Conditioning)
Good for Sensitive Skin
Good for Sensitive Skin
1
A
Butylene Glycol
(Fragrance, Skin Conditioning, Solvent, Viscositydecreasing Agent, Humectant, Masking, Viscosity Controlling)
Good for Dry Skin
Good for Dry Skin
1
Sodium Polystyrene Sulfonate
(Emulsion Stabilising, Film Forming, Surfactant, Viscosity Increasing Agent Aqueous, Gel Forming, Viscosity Controlling)
4
A
Phenoxyethanol
(Fragrance, Preservative)
Paraben
Paraben
1
A
Simmondsia Chinensis (Jojoba) Seed Oil
(Hair Conditioning, Emollient, Skin Conditioning, Viscosity Controlling)
Fungal Acne
Fungal Acne Trigger
1
A
Caprylyl Glycol
(Hair Conditioning, Skin Conditioning, Emollient, Humectant)
1
Sorghum Bicolor Stalk Juice
(Skin Conditioning)
1
A
Xanthan Gum
(Binding Agent, Emulsion Stabilising, Skin Conditioning, Surfactant Emulsifying Agent, Viscosity Increasing Agent, Binding, Gel Forming, Viscosity Controlling)
3
B
Polysorbate 20
(Emulsifying, Surfactant)
Fungal Acne
Fungal Acne Trigger
9
Retinyl Palmitate (Vitamin A) Good for Dry Skin
Good for Dry Skin
Fungal Acne
Fungal Acne Trigger
1
Tocopherol (Vitamin E) Good for Dry Skin
Good for Dry Skin
1
Dipeptide Diaminobutyroyl Benzylamide Diacetate
(Skin Conditioning)
1
Ormenis Multicaulis Oil
(Masking, Tonic)
Good for Sensitive Skin
Good for Sensitive Skin
Good for Dry Skin
Good for Dry Skin
1
A
Glycine Soja (Soybean) Oil
(Antioxidant, Fragrance, Emollient, Skin Conditioning)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
1
A
Zea Mays (Corn) Oil
(Fragrance, Hair Conditioning, Skin Conditioning Agent Occlusive, Emulsifying, Surfactant, Antistatic Agent, Emollient, Masking, Skin Conditioning, Solvent)
Bad for Oily Skin
Bad for Oily Skin
1
A
Ascorbyl Palmitate
(Antioxidant, Masking)
Fungal Acne
Fungal Acne Trigger
1
A
Linum Usitatissimum (Linseed) Seed Oil
(Fragrance, Skin Conditioning, Skin Conditioning Agent Occlusive)
Bad for Oily Skin
Bad for Oily Skin
1
B
Camellia Sinensis Leaf Extract
(Antimicrobial, Antioxidant, Astringent, Emollient, Humectant, Masking, Oral Care Agent, Skin Conditioning, Skin Protecting, Tonic, Uv Absorber)
Good for Oily Skin
Good for Oily Skin
1
Taurine
(Fragrance, Buffering Agent)
1
A
Sodium Hyaluronate
(Skin Conditioning, Humectant)
Good for Dry Skin
Good for Dry Skin
1
Hamamelis Virginiana (Witch Hazel) Water
(Drug Astringent Skin Protecting, Skin Conditioning)
Good for Oily Skin
Good for Oily Skin
Teprenone
(Skin Conditioning)
2
A
Citric Acid
(Chelating Agent, Fragrance, Ph Adjuster, Buffering Agent, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
3
A
Potassium Sorbate
(Fragrance, Preservative)
1
Lonicera Caprifolium (Honeysuckle) Flower Extract
(Astringent, Masking)
1
A
Carbomer
(Emulsion Stabilising, Viscosity Increasing Agent, Gel Forming, Viscosity Controlling)
1
Palmitoyl Oligopeptide
(Skin Conditioning, Sufactant)
1
A
Palmitoyl Tetrapeptide-7
(Skin Conditioning)
1
Pelargonium Graveolens Flower Oil
(Masking)
1
A
Cocos Nucifera (Coconut) Oil
(Fragrance, Hair Conditioning, Skin Conditioning, Emollient, Masking, Solvent)
Bad for Oily Skin
Bad for Oily Skin
Fungal Acne
Fungal Acne Trigger
1
Lonicera Japonica (Honeysuckle) Flower Extract
1
B
Rosmarinus Officinalis (Rosemary) Leaf Oil
(Fragrance, Skin Conditioning, Masking)
Bad for Sensitive Skin
Bad for Sensitive Skin
2
Alcohol
(Antifoaming Agent, Antimicrobial, Astringent, Masking, Solvent, Viscosity Controlling)
Bad for Dry Skin
Bad for Dry Skin
Bad for Sensitive Skin
Bad for Sensitive Skin
1
Plantago Lanceolata Leaf Extract
(Antimicrobial)

My Ingredient Notes

No personal ingredient notes yet. Save ingredients to your profile to get good/bad alerts here.

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Key ingredients

Glycerin
Humectant, Skin Protecting
Caprylic/Capric Triglyceride
Emollient, Skin Conditioning
Aloe Barbadensis Leaf Juice
Skin Conditioning
Butylene Glycol
Skin Conditioning, Humectant
Simmondsia Chinensis (Jojoba) Seed Oil
Emollient, Skin Conditioning
Caprylyl Glycol
Skin Conditioning, Emollient

Benefits

Good for dry skin
Good for oily/acne-prone skin

Concerns

Contains paraben
Not fungal acne (malassezia) safe
Retinyl Palmitate (Vitamin A) — higher EWG
May not suit sensitive skin

EWG flags hazard, not real-world risk — ratings don't account for how much of an ingredient a product contains. Treat these as things to research, not verdicts. How we score →

Ingredients explained

Water
Solvent
Low-hazard ingredient.Read moreShow less
EWG 1 Solvent
Caprylic/Capric Triglyceride
Emollient, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A EmollientMaskingPerfumingSkin conditioningSolvent
Sodium Polystyrene Sulfonate
Emulsion stabilising, Film forming
Low-hazard ingredient.Read moreShow less
EWG 1 Emulsion stabilisingFilm formingSurfactantViscosity increasing agent- aqueousGel formingViscosity controlling
Caprylyl Glycol
Hair conditioning, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningSkin conditioningEmollientHumectant
Sorghum Bicolor Stalk Juice
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Xanthan Gum
Binding agent, Emulsion stabilising
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Binding agentEmulsion stabilisingSkin conditioningSurfactant -emulsifying agentViscosity increasing agentBindingGel formingViscosity controlling
Dipeptide Diaminobutyroyl Benzylamide Diacetate
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioning
Taurine
Fragrance, Buffering agent
Low-hazard ingredient.Read moreShow less
EWG 1 FragranceBuffering agent
Teprenone
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A Skin conditioning
Potassium Sorbate
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR A FragrancePreservative
Lonicera Caprifolium (Honeysuckle) Flower Extract
Astringent, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 AstringentMasking
Carbomer
Emulsion stabilising, Viscosity increasing agent
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Emulsion stabilisingViscosity increasing agentGel formingViscosity controlling
Palmitoyl Oligopeptide
Skin conditioning, Sufactant
Low-hazard ingredient.Read moreShow less
EWG 1 Skin conditioningSufactant
Palmitoyl Tetrapeptide-7
Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioning
Pelargonium Graveolens Flower Oil
Masking
Low-hazard ingredient.Read moreShow less
EWG 1 Masking
+ 2 more — see the full ingredients list above
Glycerin
Denaturant, Fragrance
Low-hazard ingredient.Read moreShow less
EWG 2 CIR A DenaturantFragranceHair conditioningHumectantOral care agentOral health care drugSkin protectingViscosity decreasing agentPerfumingSolvent Good for Dry SkinFungal-acne trigger
Aloe Barbadensis Leaf Juice
Skin conditioning
Limited public safety data.Read moreShow less
EWG N/A CIR B Skin conditioning Good for Sensitive Skin
Butylene Glycol
Fragrance, Skin conditioning
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A FragranceSkin conditioningSolventViscositydecreasing agentHumectantMaskingViscosity controlling Good for Dry Skin
Phenoxyethanol
Fragrance, Preservative
Low-to-moderate hazard.Read moreShow less
EWG 4 CIR A FragrancePreservative Paraben
Simmondsia Chinensis (Jojoba) Seed Oil
Hair conditioning, Emollient
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Hair conditioningEmollientSkin conditioningViscosity controlling Fungal-acne trigger
Polysorbate 20
Emulsifying, Surfactant
Low-to-moderate hazard.Read moreShow less
EWG 3 CIR B EmulsifyingSurfactant Fungal-acne trigger
Retinyl Palmitate (Vitamin A)
Other
Higher-hazard ingredient.Read moreShow less
EWG 9 Good for Dry SkinFungal-acne trigger
Tocopherol (Vitamin E)
Other
Low-hazard ingredient.Read moreShow less
EWG 1 Good for Dry Skin
Ormenis Multicaulis Oil
Masking, Tonic
Low-hazard ingredient.Read moreShow less
EWG 1 MaskingTonic Good for Sensitive SkinGood for Dry Skin
Glycine Soja (Soybean) Oil
Antioxidant, Fragrance
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A AntioxidantFragranceEmollientSkin conditioning Bad for Oily SkinFungal-acne trigger
Zea Mays (Corn) Oil
Fragrance, Hair conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceHair conditioningSkin-conditioning agent - occlusiveEmulsifyingSurfactantAntistatic agentEmollientMaskingSkin conditioningSolvent Bad for Oily Skin
Ascorbyl Palmitate
Antioxidant, Masking
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A AntioxidantMasking Fungal-acne trigger
Linum Usitatissimum (Linseed) Seed Oil
Fragrance, Skin conditioning
Potentially comedogenic - can block poresRead moreShow less
EWG 1 CIR A FragranceSkin conditioningSkin-conditioning agent -occlusive Bad for Oily Skin
Camellia Sinensis Leaf Extract
Antimicrobial, Antioxidant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR B AntimicrobialAntioxidantAstringentEmollientHumectantMaskingOral care agentSkin conditioningSkin protectingTonicUv absorber Good for Oily Skin
Sodium Hyaluronate
Skin conditioning, Humectant
Low-hazard ingredient.Read moreShow less
EWG 1 CIR A Skin conditioningHumectant Good for Dry Skin
+ 5 more — see the full ingredients list above

How to use

How to use

  • 1 Where it fits: Apply after toner and before moisturiser — thinnest to thickest.
  • 2 Morning only: Apply as the last step of your AM routine, after moisturiser, and reapply every ~2 hours of sun exposure.
  • 3 Wear SPF the next day: Acids and retinoids increase sun sensitivity — daily sunscreen is a must while using this.

General guidance from this product's category and active ingredients — always follow the directions on the package.

Trust & honesty

Pregnancy & breastfeeding

Contains ingredients some choose to avoid or double-check while pregnant or nursing.

Often avoided
Retinoids (Vitamin A) (Retinyl Palmitate (Vitamin A))

Topical retinoids (retinol, retinaldehyde, retinyl esters) are widely advised against in pregnancy as a precaution. The strongest evidence is for ORAL retinoids; topical absorption is low, but most clinicians err on the side of caution.

This is general information, not medical advice. Pregnancy guidance varies and depends on concentration and your individual situation — always check with your doctor, midwife or pharmacist. How we flag this.

Effective levels — general guide

The concentrations these actives are typically effective at in research — not a measurement of this product.

Retinoids (Vitamin A) 0.01–1%

Most studied between 0.1% and 1%. Higher is not automatically better — irritation climbs with dose, so a well-formulated lower strength is often the sweet spot.

Retinyl Palmitate (Vitamin A)

Vitamin C (ascorbic) 5–20%

L-ascorbic acid is usually used at 5–20% (around 10–15% is common). Above ~20% adds little and tends to irritate more; it also needs a low pH to work.

Ascorbyl Palmitate

INCI lists don't disclose amounts, and we don't claim to know this product's levels — these are the ranges these ingredients are usually effective at, so you can tell a real formula from "fairy-dusting" a marketed active. How we estimate this.

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