Marc Anthony Grow Long Deep Conditioning Hair Mask 10.4 oz — Biotin & Argan Oil for Dry, Damaged Hair

Marc Anthony Grow Long Deep Conditioning Hair Mask is an intensive 10.4 oz treatment formulated with caffeine, hydrolyzed keratin, argan oil and biotin to restore strength, moisturize and reduce breakage in dry, damaged hair.

This concentrated mask targets hair that needs extra reinforcement and softness. Designed as a weekly or as-needed deep treatment, the formula works on the cuticle and internal structure to improve elasticity and manageability. It’s free of parabens, sulfates (SLS), and phthalates, and pairs well with the rest of the Grow Long collection for layered care.

How does this mask help hair that breaks or splits?

The mask combines hydrolyzed keratin and biotin-supporting ingredients to reinforce weakened strands and smooth the hair surface. Regular use helps reduce friction and tangles, which lowers the chance of breakage from brushing or styling.

• Hydrolyzed keratin rebuilds protein lost from chemical or heat damage.
• Caffeine and ginseng help energize the scalp appearance and support resilient-looking strands.
• Argan oil adds slip to reduce friction and tame frizz.
• Biotin-associated ingredients contribute to the look of fuller, stronger hair.

When and how should I use the Grow Long deep conditioning mask?

Use after shampooing on wet hair as a concentrated conditioning step. Apply generously from mid-length to ends, leave on for 3–5 minutes, then rinse thoroughly; for more intense conditioning, extend the leave-on time as needed.

• Apply to freshly cleansed, towel-dried hair for best penetration.
• Leave on 3–5 minutes; longer for extra dry or highly processed hair.
• Use once a week or whenever strands feel brittle or rough.
• Follow with a lightweight conditioner if your hair needs extra detangling.

Will this product weigh hair down or leave residue?

The formula is designed to deliver nourishment without heavy buildup when used as directed. Rinsing thoroughly after the recommended time helps prevent any residue, and fine-haired users can apply mainly to mid-lengths and ends to avoid excess weight at the roots.

• Light-to-moderate texture suitable for most hair types.
• Rinse well to maintain natural movement and volume.
• Use sparingly near the scalp if you have fine or oily roots.
• Pair with lighter styling products to preserve lift.

Which ingredients should I expect and what do they do?

The mask blends targeted actives and nourishing oils to address multiple signs of damage. Key components include hydrolyzed keratin for strand strength, argan oil for softening and shine, caffeine and ginseng for a revitalized-feeling scalp, and biotin-associated compounds for overall hair health support.

• Hydrolyzed keratin: helps rebuild protein structure inside the hair fiber.
• Argan oil: smooths cuticles, adds gloss and reduces frizz.
• Caffeine + ginseng: provide an invigorating sensory effect and support resilient-looking hair.
• Biotin-supporting ingredients: promote the appearance of fuller, healthier hair.

Who this mask is for: Ideal for people with dry, brittle, chemically treated or heat-styled hair who want a salon-style restorative treatment at home. It suits most hair types seeking improved elasticity and smoother texture; those with fine, oily roots should concentrate application on mid-lengths and ends. If you want to build length with less breakage and more manageability, this mask is a practical weekly step in a longer haircare routine.

Ingredients

"Aqua/Water/Eau, Cetyl Alcohol, Behentrimonium Chloride, Caprylic/Capric Triglyceride, Cetearyl Alcohol, Cetyl Esters, Dimethicone, Stearyl Alcohol, Hydroxyethylcellulose, Cetrimonium Chloride, Fragrance/Parfum, Amodimethicone , Trideceth-12, Isopropyl Alcohol, Vitis Vinifera (Grape) Seed Oil, Tocopheryl Acetate, Panax Ginseng Root Extract, Hydrolyzed Keratin, Persea Gratissima (Avocado) Oil, Argania Spinosa Kernel Oil, Caffeine , Biotin, Sodium Pca , Sodium Lactate, Arginine, Aspartic Acid, Pca, Alanine, Glycine, Serine, Valine, Proline, Threonine, Isoleucine, Histidine, Phenylalanine, Phenoxyethanol, Ethylhexylglycerin, Disodium Edta, Butylene Glycol, Citric Acid, Linalool, Butylphenyl Methylpropyional, Sodium Benzoate, Cellulose, Sodium Acetate"