5 best hair oils to mix with castor oil for faster hair growth in summer

Hair Growth Oils: Here are the best hair oils to combine with castor oil for stronger, healthier, and faster overnight hair growth while keeping your scalp nourished in summer.

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Written By: Muskan Gupta | Updated: May 11, 2026, 6:01 PM

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Coconut Oil For Hair Growth

One of the best oils to combine with castor oil for overnight hair growth in summer is coconut oil. It is light weight and helps to promote softness, minimize dryness, frizz and loss of protein in the hair. Coconut oil will also deeply hydrate the scalp and insulate the hair from the sun and heat damage. Gently mix 1 tablespoon of castor oil with 2 tablespoons of coconut oil before applying to the scalp and massaging it in before going to sleep. Shampoo it off the next morning with a mild shampoo.

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Almond Oil For Hair Growth

Almond oil contains a high amount of vitamin E and is helpful in summer to make hair thin and prevent hair fall. Lighter than castor oil and better for nourishing dry ends; not greasy. This mix is particularly good for individuals who have rough and dull hair, which is triggered by heat and pollution. Apply the mixture of equal parts almond oil and castor oil to the scalp and hair lengths and leave on overnight for softer and shinier hair.  Also Read - Castor oil for hair growth: Dermatologist shares 5 powerful benefits for thicker, stronger and shinier hair naturally

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Jojoba Oil For Hair Growth

Jojoba oil is similar to the natural oil that the scalp produces and is ideal for oily scalps in the summer months. Helps to regulate overproduction and keeps the scalp moist. Properly combined with castor oil, it makes a non-sticky mix that will help to keep healthier hair roots and minimize buildup. For an overnight treatment, use 1 tablespoon castor oil and 2 tablespoons jojoba oil.

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Rosemary Oil For Hair Growth

Rosemary oil is also highly popular in nourishing and supporting hair growth and promoting scalp circulation. Essential oils are potent and only a few drops should be added to the castor oil and carrier oil (coconut or jojoba oil). This mix can be beneficial for conditioning and preventing hair loss while humidity in the summer. Apply lightly, and don't overdo the oil as it will congest the scalp.  Also Read - 5 Best oils to mix with castor oil for faster and better hair growth based on your hair type

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Olive Oil For Hair Growth

Another great castor oil mixture is olive oil, particularly when combined with dry, damaged hair. It deeply conditions the hair, regulates frizz and imparts shine without causing any roughness after sun exposure. The combination of olive oil and castor oil is ideal for those who have curled or treated hair. Rub the mixture into the hair and scalp and let it sit overnight for natural smooth, healthy hair.

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