Geologie Cooling Hair Co‑Wash — 4‑in‑1 Cleansing Conditioner & Mask, Refill Pouch with Tea Tree Cooling

Geologie Cooling Hair Co-Wash is a 4-in-1 hair cleanser that gently cleanses, conditions, repairs and soothes the scalp using tea tree, aloe, squalane and vitamin B5.

This concentrated co-wash replaces multiple products by combining cleansing, conditioning, deep-conditioning and finishing serum effects in a single formula designed for everyday manageability. The low-foam, derm-grade formulation avoids harsh detergents so hair retains natural moisture while tea tree oil and menthol deliver a refreshing cooling sensation for the scalp. Packaged in an eco-friendly refill pouch that uses 84% less plastic than a traditional bottle, it’s built to reduce waste without sacrificing performance.

How does this product clean without stripping natural oils?

Instead of relying on high-foaming sulfates, the co-wash uses gentle surfactants and conditioning agents that lift dirt and buildup while preserving the scalp’s protective lipids. This approach reduces dryness, prevents frizz and helps hair stay softer between washes.

• Derm-grade, low-foam formula avoids SLS/SLES and harsh detergents
• Protein-rich ingredients help rebuild hair structure during cleanse
• Helps moderate natural oil production for longer-lasting freshness
• Suitable for all hair types, including color-treated hair

What scalp and styling benefits do tea tree oil and menthol provide?

Tea tree oil and menthol are included for a light, invigorating scalp feel. They act as sensory ingredients to reduce greasy sensations and leave the scalp feeling refreshed while supporting healthier-looking hair texture.

• Tea tree oil helps refresh and clarify the scalp surface
• Menthol delivers a cooling, tingly sensation for immediate scalp comfort
• Formula helps reduce buildup that can weigh hair down
• Promotes a clean, revitalized base for styling

How does one product act as cleanser, conditioner, mask and serum?

The concentrated formula is balanced to perform at multiple stages: it provides enough surfactant action for gentle cleansing, conditioning agents for detangling, proteins and humectants for repair, and lightweight oils for finishing shine. Application technique determines the primary effect—short rinse for everyday wash, longer leave-in for deep conditioning.

• Quick lather and rinse for daily cleansing without dryness
• Leave on for several minutes to use as a repair mask
• Apply sparingly to ends as a lightweight finishing serum for shine
• Helps extend time between traditional shampoo washes

Is the formula safe and sustainable for regular use?

Yes—the formula is free from parabens, phthalates, PFAS and common sulfates, designed for frequent use without stripping. The eco pouch cuts plastic by 84%, offering a lower-waste option compared with single-use rigid bottles.

• Formulated without sulfates, parabens, phthalates or PFO/PFAs
• Concentrated pouch reduces packaging waste and shipping volume
• Protein-rich and ultra-hydrating for ongoing hair health support
• Designed for both men and women and all hair textures

Who is this for: This product suits anyone seeking a simplified hair routine—people who want to reduce the number of products they use, those with dry or frizz-prone hair looking for hydration, and anyone preferring gentler, low-foam cleansing. It's also a good choice for eco-conscious shoppers who want effective hair care in reduced-plastic packaging. Avoid contact with eyes; discontinue use if irritation occurs.

Ingredients

Water/Aqua/Eau, Aloe Barbadensis Leaf Juice, Cetearyl Alcohol, Cetyl Alcohol, Ethylhexyl Palmitate, Behentrimonium Chloride, Glycerin, Squalane, Stearyl Alcohol, Fragrance/Parfum, Simmondsia Chinensis (Jojoba) Seed Oil, Panthenol, Hydrolyzed Rice Protein, Melaleuca Alternifolia (Tea Tree) Leaf Oil, Menthol, Humulus Lupulus (Hops) Extract, Behentrimonium Methosulfate, Cetrimonium Chloride, Phenoxyethanol, Caprylyl Glycol, Propanediol, Citric Acid, Potassium Sorbate, Benzyl Alcohol, Sodium Benzoate, Limonene, Linalool, Geraniol