VOLUME SHAMPOO
A gentle, high-foaming cleansing shampoo built around Caffeine, a xanthine alkaloid with documented topical cosmetic positioning, and Zinc PCA, a mineral salt that supports the appearance of a balanced scalp. Cantharellus Cibarius (Chanterelle) Extract and Rosemary Leaf Oil complete the 390 ml formula, which helps the look of fuller hair and comforts the scalp with a cooling peppermint finish.
Backed by published research · references belowHow subscriptions work
- Your ritual, uninterrupted. Each refill arrives before the last one runs out, at 20% off with complimentary shipping, every time.
- We email you ten days before each refill ships, and you are only billed on the day it ships.
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Formulated for Dry Skin, Oily Skin.
- Caffeine at INCI position 15, a xanthine alkaloid, is listed by EU CosIng with SKIN CONDITIONING and TONIC functions, with topical microcirculation positioning documented1.
- Zinc PCA at INCI position 9, a mineral salt, supports the appearance of a balanced scalp. The PCA carrier family is assessed safe by CIR2.
- Rosmarinus Officinalis (Rosemary) Leaf Oil, a skin-conditioning botanical, comforts the scalp and shapes the aromatic profile, assessed safe as used in cosmetics3.
Hero mechanism: Caffeine, a xanthine alkaloid, documented for topical effects on local skin microcirculation as an ingredient mechanism class reference. Full mechanism and citations under Details and references.
The Opuliss Skin Volume Shampoo is a 390 ml / 13.19 fl oz gentle-surfactant cleansing shampoo, built on a multi-active stack of Cantharellus Cibarius (Chanterelle) Extract, Caffeine, Zinc PCA, and Hydrolyzed Keratin with Rosmarinus Officinalis (Rosemary) Leaf Oil. It cleanses the scalp in a high-foaming wash and pairs with the Opuliss Volume Conditioner. The formula is 99% natural origin and 4% organic origin. Not vegan eligible, as it contains Hydrolyzed Keratin derived from sheep wool. Positioned for daily use across dry and oily-scalp hair profiles.
Cantharellus Cibarius (Chanterelle) Extract, Disodium Cocoyl Glutamate, Sodium PCA, Zinc PCA, Caffeine, Hydrolyzed Keratin, Leuconostoc/Radish Root Ferment Filtrate, Rosmarinus Officinalis Leaf Oil, Mentha Piperita Oil, Menthol.
Active ingredients: Caffeine, a xanthine alkaloid (skin-conditioning and toning); Zinc PCA, a mineral salt supporting a balanced-looking scalp; Rosmarinus Officinalis (Rosemary) Leaf Oil, a skin-conditioning botanical.
Aqua/Water, Lauryl Glucoside, Sodium Coco-Sulfate, Cantharellus Cibarius (Chanterelle) Extract, Glycerin, Citric Acid, Disodium Cocoyl Glutamate, PCA Glyceryl Oleate, Sodium PCA, Zinc PCA, Coco-Glucoside, Glyceryl Oleate, Parfum/Fragrance, Sodium Chloride, Caffeine, Benzyl Alcohol, Sodium Cocoyl Glutamate, Sodium Benzoate, Potassium Sorbate, Hydrolyzed Keratin, Leuconostoc/Radish Root Ferment Filtrate, Rosmarinus Officinalis Leaf Oil, Mentha Piperita Oil, Menthol, Limonene, Camphor, Citrus Aurantium Bergamia Peel Oil, Pinene
The ingredient list printed on your product’s packaging is always definitive; where it differs from this page, the packaging prevails.
Apply to wet hair and massage gently to lather, focusing on the scalp. Rinse thoroughly. Follow with the Opuliss Volume Conditioner on the mid-lengths and ends. Suitable for daily use across fine-to-medium hair types.
99% natural origin. 4% organic origin. Not vegan eligible (contains Hydrolyzed Keratin derived from sheep wool). EU 26-allergen disclosure above the 0.01% rinse-off labelling threshold: Parfum, Menthol, Limonene, Camphor, Pinene, plus Peppermint and Bergamot essential oil constituents. The Peppermint Oil and Menthol contribute a brief cooling sensation during the rinse window. Patch test recommended for first use. Avoid contact with eyes. Rinse with water if any product enters the eye.
- Herman A, Herman AP. Caffeine's mechanisms of action and its cosmetic use. Skin Pharmacology and Physiology. 2013;26(1):8-14. DOI 10.1159/000343174. PubMed PMID 23075568.
- Fiume MM, Bergfeld WF, Belsito DV, et al. Safety Assessment of PCA (2-Pyrrolidone-5-Carboxylic Acid) and Its Salts as Used in Cosmetics. International Journal of Toxicology. 2019;38(Supplement 1):5S-11S.
- Fiume MM, Bergfeld WF, Belsito DV, et al. Safety Assessment of Rosmarinus officinalis (Rosemary)-Derived Ingredients as Used in Cosmetics. International Journal of Toxicology. 2018;37(3 Suppl):12S-50S. DOI 10.1177/1091581818800020.
How to cite this product page: Opuliss. VOLUME SHAMPOO. Opuliss Skin product page. 2026. https://opuliss.com/products/keratin-volume-boost-shampoo
The Science
Fuller-hair zoneRosemary (Rosmarinus Officinalis) oil is studied in cosmetics for supporting the look of a healthy scalp and the appearance of thicker, fuller-looking hair.
Source: Patel MN, et al. Cureus, 2025 (PMID 40656290).
INSIDE THE SCIENCE
From precision-fermented actives to biomimetic complexes, discover what makes it Opuliss.
CHANTERELLE
Chanterelle mushroom extract that contributes antioxidant phytochemicals and conditions the skin.
Source: Que Y, et al. Food Chemistry, 2025 (PMID 40347812).
KERATIN
Reinforces and smooths the look of hair for strength and shine.
Source: Fan J, et al. Molecules, 2025 (PMID 40076404).
SODIUM PCA
A natural moisturising factor that binds water for lasting surface hydration.
Source: Feng L, et al. International Journal of Cosmetic Science, 2014 (PMID 24517532).
HOW TO USE
Apply to wet hair and massage gently to lather, focusing on the scalp.
Rinse thoroughly.
Follow with the Opuliss Volume Conditioner on the mid-lengths and ends. Suitable for daily use across fine-to-medium hair types.
The Opuliss difference
SCIENCE, MADE VISIBLE
Opuliss begins where the research ends. Every active is named, every claim is traceable, and nothing is left to promise alone.
Morning to night
A RITUAL, CONSIDERED
Each formula stands on its own and belongs to the whole. Layered with intention, morning and night, the routine becomes unmistakably yours.
A twenty four hour rhythm
THE SKIN KEEPS TIME
Skin is not the same at midnight as it is at nine in the morning. Across a single day its temperature, its acidity and the moisture it loses to the air each move on a rhythm of their own. Morning and night are not two routines. They are one, kept in time.
Yosipovitch G et al. Journal of Investigative Dermatology, 1998 (PMID 9424081). Sixteen volunteers sampled every two hours across a twenty four hour span.
