Jack Black Brightening Booster Vitamin C Serum 1 oz — 10% THD-Ascorbate, Hydrating Daily Antioxidant Treatment

Jack Black Brightening Booster Vitamin C Serum is a lightweight, hydrating vitamin C treatment that helps brighten skin tone and support an even-looking complexion with a stable 10% THD-Ascorbate.

This multitasking serum combines a highly stable form of vitamin C with botanically derived actives to target dullness and uneven pigmentation while delivering moisture. The formula is designed for daily use under moisturizer and sunscreen, and it includes antioxidants that defend against environmental stressors like blue light. It’s dermatologist-tested, paraben-free, cruelty-free, and formulated to be gentle on sensitive skin.

How does this serum help brighten and even skin tone?

The serum uses 10% THD-Ascorbate, a stable, oil-soluble form of vitamin C known for its brightening support. Over continued use, this ingredient helps the skin look more radiant and can reduce the appearance of uneven pigmentation. The lightweight base allows for easy layering under other skincare and makeup.

• Contains 10% THD-Ascorbate, a stable vitamin C derivative
• Hydrating texture for daily layering
• Formulated to reduce the look of dullness and uneven tone

What other antioxidants and actives are included, and what do they do?

The formula includes green microalgae, which helps protect the skin from digital environmental stressors like blue light exposure, and Acetyl Zingerone, a potent antioxidant that supports the skin’s defense against oxidative stress. These actives work with vitamin C to provide a broad antioxidant profile without heavy fragrances or harsh additives.

• Green microalgae to help shield against blue light effects
• Acetyl Zingerone for antioxidant protection
• Dermatologist-tested and free from parabens and harsh surfactants

How should I use the Brightening Booster in my routine?

Apply a few drops of the serum to clean, dry skin once or twice daily before moisturizer. Allow it to absorb briefly before following with sunscreen in the morning or your preferred hydrating products at night. Because it layers well, it’s suitable for most standard skincare routines.

• Use 2–3 drops on face and neck after cleansing
• Apply sunscreen after in the daytime
• Compatible with most moisturizers and treatments

Is this serum suitable for sensitive or acne-prone skin?

Jack Black formulates this serum to be gentle and free of common irritants like parabens and harsh surfactants. While it’s generally well tolerated, those with very reactive skin should patch test first or consult a dermatologist if concerned about vitamin C sensitivity.

• Paraben-free, cruelty-free, and dermatologist-tested
• Vegan-friendly and free of artificial colorants
• Patch test recommended for very reactive skin

Who is this for: This Brightening Booster suits anyone wanting a non-greasy vitamin C serum to address dullness, uneven tone, and day-to-day environmental stressors. It’s a good fit for people seeking a stable 10% vitamin C option that layers easily with sunscreens and moisturizers, and for those who prefer formulas without parabens or harsh surfactants.

Ingredients

Aqua/Water/Eau, Tetrahexyldecyl Ascorbate, Propanediol, Glycerin, Caprylic/Capric Triglyceride, Dimethicone, Helianthus Annuus (Sunflower) Seed Oil*, Arachidyl Alcohol, Terminalia Chebula Fruit Extract, Cetearyl Alcohol, Scenedesmus Rubescens Extract, Acetyl Zingerone, Camellia Sinensis Leaf Extract*, Olea Europaea (Olive) Fruit Oil*, Linum Usitatissimum (Linseed) Seed Extract*, Laminaria Digitata Extract*, Punica Granatum Fruit Extract*, Panthenol, Hydrogenated Lecithin, Sorbitan Olivate, Cetearyl Olivate, Tocopherol, Bis-PEG-18 Methyl Ether Dimethyl Silane, Behenyl Alcohol, Arachidyl Glucoside, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Caprylyl Glycol, Dipropylene Glycol, Polyethylene Glycol Monomethyl Ether, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Hydroxide, Phenoxyethanol, Dimethiconol, Ethylhexylglycerin, Disodium EDTA, Polysorbate 60, Sorbitan Isostearate.