Josh Rosebrook BioIdentical Collagen Serum

Editor's Take

For once, a collagen serum earns its ambition: Sh-polypeptide-47 and Ectoin sit in a lamellar base that puts most botanical serums several shelves behind.

Four-pillar formula scores

• Performance: 8.8 / 10
• Innovative Ingredients: 9.2 / 10
• Clean Standards: 10.0 / 10
• Formula Sustainability: 9.5 / 10

The Verdict

This is one of the rare collagen serums with serious formulation behind the name. Sh-polypeptide-47 supports structural signaling, while Ectoin and Hydrogenated Lecithin bolster stress defense, active delivery, and barrier function. Olive oil, jojoba esters, aloe, ferments, and Sodium Hyaluronate provide substantial moisture within an exceptionally clean, sustainable blend. Collagen sourcing could be more transparent, but this remains a standout treatment rather than botanical window dressing.

Is Josh Rosebrook BioIdentical Collagen Serum clean?

DARE scores Josh Rosebrook BioIdentical Collagen Serum by Josh Rosebrook 10.0 / 10 on Clean Standards, the human-health pillar of the Formulation Architecture Model™. That reading comes from the published INCI list read as a system — preservative, fragrance and surfactant choices in context — not from flagging single ingredients in isolation.

What are the key ingredients in Josh Rosebrook BioIdentical Collagen Serum?

The formula leads with Water, Glycerin, Olea Europaea Fruit Oil, Jojoba Esters, C12-16 Alcohols, Polyhydroxystearic Acid. DARE reads the full INCI list below in order, so position and pairing shape how each ingredient contributes under Performance and Innovative Ingredients.

How does DARE score Josh Rosebrook BioIdentical Collagen Serum?

Under the Formulation Architecture Model™, Josh Rosebrook BioIdentical Collagen Serum by Josh Rosebrook scores Performance 8.8 / 10, Clean Standards 10.0 / 10, Innovative Ingredients 9.2 / 10, and Formula Sustainability 9.5 / 10. Each pillar is scored from the finished formula rather than from isolated ingredient flags.

Read the Formulation Architecture Model™ →

DARE vs single-ingredient apps like Yuka →

Full INCI list

Water (Aqua), Glycerin, Olea Europaea (Olive) Fruit Oil, Jojoba Esters, C12-16 Alcohols, Polyhydroxystearic Acid, Oryza Sativa (Rice) Seed Water, Aloe Barbadensis (Aloe Vera) Leaf Juice, Chrondrus Crispus Extract, Sh-polypeptide-47 (Bioidentical Micro Collagen), Ectoin, Bambusa Arundinacea (Bamboo) Stem Extract, Trametes Versicolor (Turkey Tail) Mushroom, Inonotus Obliquus (Chaga Mushroom), Saccharomyces/Rice Ferment Filtrate, Pseudoalteromonas Ferment Extract, Chlorella Vulgaris Powder, Sodium Hyaluronate, Lactobacillus Ferment, Propanediol, Tocopherol (Vitamin E), Citric Acid, Xanthan Gum, Leuconostoc/ Radish Root Ferment Filtrate, Palmitic Acid, Sodium Anisate, Caprylyl/Capryl Glucoside, Caprylyl Glycol, Sodium Levulinate, Hydroxyacetophenone, Pentylene Glycol, 1, 2-Hexanediol, Hydrogenated Lecithin, Phenethyl Alcohol, Citrus Sinensis FCF (Orange) Peel Oil Expressed