follicle theory™ Register interest

follicle
theory™

Scalp care · Melbourne

Start at the scalp. A three-step scalp care routine with Capixyl™, Redensyl™, caffeine and niacinamide, for hair that looks fuller and feels stronger.

Register your interest Launching 1 December 2026
follicle theory Thickening Shampoo in a stone shower niche with a sprig of rosemary
The routine

Three steps. Every day.

Each step has one job. Together they keep your scalp clean and comfortable, your strands strong and your routine simple. For men and women with fine, fragile or thin-looking hair.

follicle theory Thickening Shampoo, 250 ml
Thickening Shampoo 250 ml
Cleanses the scalp, not just the hair
A gentle, scalp-first cleanser that lifts oil and build-up without stripping, with Capixyl™ and Redensyl™ for stronger, fuller-looking hair. Lather into the scalp and leave for 1 to 2 minutes before rinsing.
01 · Cleanse$50
follicle theory Thickening Conditioner, 250 ml
Thickening Conditioner 250 ml
Strengthens strands to reduce breakage
A lightweight conditioner with caffeine, niacinamide and panthenol. Fine hair keeps its volume, strands feel stronger, and there is less hair fall from breakage.
02 · Condition$50
follicle theory Thickening Serum, 30 ml dropper bottle
Thickening Serum 30 ml
The leave-on step that does the most work
A non-greasy, leave-on serum with caffeine, niacinamide, Capixyl™ and Redensyl™, for thicker-feeling, fuller-looking hair. Massage into a clean, dry scalp once a day. No rinsing.
03 · Treat$50
The theory

Four actives, chosen on purpose

Every ingredient has a job. The full list for each product is below.

Capixyl™ · Peptide + red clover

Fuller-looking hair

A biomimetic peptide paired with red clover extract, in all three steps. Chosen for hair that looks denser and fuller and feels stronger.

Redensyl™ · Larch, green tea, zinc

A healthy-looking scalp

Larch and green tea extracts with glycine and zinc, in all three steps, for a healthy-looking scalp and denser-looking hair.

Caffeine · Conditioner + Serum

Wakes up the scalp

Paired with niacinamide, caffeine leaves the scalp feeling refreshed and hair looking fuller.

Niacinamide · Vitamin B3

Keeps the scalp balanced

Supports the scalp's natural barrier, so it stays comfortable and in good condition, which is where good-looking hair starts.

Thickening Shampoo · full ingredients

Aqua, Sodium Methyl Cocoyl Taurate, Cocamidopropyl Betaine, Glycerin, Sodium Lauroamphoacetate, Parfum, Coco-Glucoside, Glyceryl Oleate, Polyquaternium-7, Hydrolyzed Quinoa, Phenoxyethanol, Propanediol, Sodium Chloride, Butylene Glycol, Polyquaternium-10, Potassium Sorbate, Panthenol, Biotin, Hydrolyzed Jojoba Esters, Serenoa Serrulata Fruit Extract*, Rosmarinus Officinalis Leaf Oil*, Cucurbita Pepo Seed Oil*, Eleutherococcus Senticosus Root Extract*, Ethylhexylglycerin, Dextran, Acetyl Tetrapeptide-3, Trifolium Pratense Flower Extract, Larix Europaea Wood Extract, Camellia Sinensis Leaf Extract, Glycine, Zinc Chloride, Sodium Metabisulfite, Citric Acid. *Certified organic ingredients.

Thickening Conditioner · full ingredients

Aqua, Glycerin, Behentrimonium Chloride, Cetearyl Alcohol, Coco-Caprylate, Parfum, Niacinamide, Phenoxyethanol, Caffeine, Butylene Glycol, Polyquaternium-10, Disodium EDTA, Panthenol, Polyquaternium-7, Hydrolyzed Quinoa, Serenoa Serrulata Fruit Extract*, Rosmarinus Officinalis Leaf Oil*, Cucurbita Pepo Seed Oil*, Linum Usitatissimum Seed Oil*, Sambucus Nigra Flower Extract*, Eleutherococcus Senticosus Root Extract*, Urtica Dioica Leaf Extract*, Telopea Speciosissima Flower Extract*, Ethylhexylglycerin, Dextran, Acetyl Tetrapeptide-3, Trifolium Pratense Flower Extract, Larix Europaea Wood Extract, Camellia Sinensis Leaf Extract, Glycine, Zinc Chloride, Sodium Metabisulfite, Citric Acid. *Certified organic ingredients.

Thickening Serum · full ingredients

Aqua, Butylene Glycol, Polysorbate 20, Propanediol, Niacinamide, Glycerin, Parfum, Caffeine, Eleutherococcus Senticosus Root Extract*, Phenoxyethanol, Xanthan Gum, Tocopherol, Ricinus Communis Seed Oil*, Serenoa Serrulata Fruit Oil, Rosmarinus Officinalis Leaf Oil*, Cucurbita Pepo Seed Oil*, Panthenol, Biotin, Ethylhexylglycerin, Dextran, Acetyl Tetrapeptide-3, Trifolium Pratense Flower Extract, Larix Europaea Wood Extract, Camellia Sinensis Leaf Extract, Glycine, Zinc Chloride, Sodium Metabisulfite, Citric Acid. *Certified organic ingredients.

follicle theory Thickening Serum on slate with fresh rosemary
The Thickening System gift box, open, with all three follicle theory products
The Thickening System

All three steps, in one box

The complete routine, packed in our black gift box with each step numbered so you know exactly where to start.

  • Thickening Shampoo250 ml$50
  • Thickening Conditioner250 ml$50
  • Thickening Serum30 ml$50
  • The Thickening SystemAll three, gift boxed$150
Launch
1 December 2026, in Melbourne
Made
In Australia. Vegan, cruelty free, sulphate and paraben free, with certified organic botanicals
Stockists
Clinics, salons and pharmacies can register below for wholesale details

Recommended retail prices in AUD. Register your interest and we'll email you on launch day with where to buy.

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