The main variation is the fact that oils are typically far more highly-concentrated and are generally applied as a pre-shower scalp treatment. Its principal fatty acid is lauric acid. It's a high affinity for hair protein which suggests it bonds to protein and can certainly penetrate inside the hair shaft. https://allhealthmarket.com/product/health-and-beauty-2/hair-care/2024-biotin-fast-hair-growth-oil-hair-regrowth-serum-hair-thinning-treatment-hyperplasia-hair-loss-treatment-herbal-essence-promoting-regeneration/