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The Biochemical Advantage: Why Castor Oil Thrives at Night
Castor oil is not just any vegetable oil. It boasts a distinct composition that sets it apart: approximately 90% of its content is ricinoleic acid. This rare, hydroxyl-group-rich fatty acid is a master key for health and beauty. The oil is also densely packed with Vitamin E, as well as Omega-6 and Omega-9 essential fatty acids.
Nighttime is the prime time for repair because:
Skin’s Repair Protocol: From approximately 10 PM to 2 AM, your skin’s cellular regeneration rate spikes. The production of collagen increases, and cells repair damage accumulated during the day.
Enhanced Penetration: Your skin’s temperature rises slightly and its protective barrier function can be slightly more permeable, allowing the dense nutrients in castor oil to penetrate far deeper than they could during the day.
Occlusive Power: Castor oil’s thickness makes it an exceptional occlusive agent, meaning it forms a protective yet breathable barrier. This barrier is critical overnight as it prevents the valuable moisture your skin has absorbed from evaporating (known as Transepidermal Water Loss or TEWL), locking in hydration for hours.
By applying this potent oil before bed, you are granting your hair follicles and skin cells an uninterrupted, rich infusion of nutrients during their most active regeneration phase.
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