The Most Important Study in Natural Haircare
In 2003, a study published in the Journal of Cosmetic Science compared the penetration of three oils into the human hair shaft: coconut oil, sunflower oil, and mineral oil. The results were unambiguous. Coconut oil penetrated the hair shaft significantly. Sunflower oil showed minimal penetration. Mineral oil showed no penetration at all. This study is the scientific foundation of coconut oil's genuine advantage over most other hair oils. It is not marketing. It is chemistry.
What Makes Lauric Acid Unique
The penetration advantage of coconut oil is almost entirely attributable to its lauric acid content. Lauric acid is a medium-chain saturated fatty acid that constitutes approximately 48 percent of the fatty acid profile of virgin coconut oil and coconut milk. Its unique penetration capacity comes from two properties: its molecular size (smaller than the long-chain fatty acids that dominate olive, argan, and castor oil) and its high affinity for the protein structure of the hair's cortex. Hair proteins have a molecular architecture that has binding sites for lauric acid. Longer-chain fatty acids cannot reach these sites or form the same bonds.
The practical consequence documented by the International Journal of Cosmetic Science: coconut oil applied before washing measurably reduces the amount of protein that is lost from the hair during the wetting and drying cycle. Coconut's lauric acid, when present inside the shaft, occupies the protein-binding sites and reduces this displacement. Hair treated consistently with real coconut holds onto more of its protein through each wash.
Not All Coconut Is Equal
Fractionated coconut oil — a popular choice in cosmetic formulations because it is liquid at room temperature — has been processed to remove most of its medium-chain fatty acids, including lauric acid. What remains is primarily caprylic and capric acid, which are excellent emollients but have no meaningful penetration capacity. A product containing fractionated coconut oil contains almost no lauric acid — and therefore delivers almost none of the documented benefits of coconut on hair. This is one of the most widespread and underacknowledged misrepresentations in the haircare industry.
What to Look For on a Label
If the penetration effect is what you are after, the thing to check is which form of coconut a product actually contains. Whole coconut milk and unrefined virgin coconut oil retain their lauric acid. Fractionated coconut oil and 'coconut fragrance' do not.
The lauric acid research is solid. Whether any given bottle delivers on it depends entirely on what is actually in the bottle — which is a question of reading the label rather than trusting the front of it.
What we make
Tasic Pure Oils makes Long and Strong — a shampoo, conditioner and mist built around organic aloe vera pulp and whole coconut milk, not fractionated coconut oil. That is a deliberate formulation choice, and it is the reason this article exists. Australian-made in small batches, with no sulphates, silicones, parabens or palm oil.
What you notice is softer, smoother, shinier hair that combs through easily, wash after wash, with less breakage in the brush. It comes as a three-step system: shampoo, conditioner and a leave-in Coco Aloe Mist. Check where the coconut sits on our ingredient list — the same test we just asked you to apply to everyone else. Get Long and Strong.
References
• Journal of Cosmetic Science, Vol. 54 (2003): Penetration of coconut oil vs sunflower and mineral oil into the hair shaft
• International Journal of Cosmetic Science, Vol. 41 (2019): Lauric acid and protein-loss prevention in chemically treated hair
