Washing your hair only to find it greasy the next day is a common frustration – and many might be questioning their hair care routine . Dr. Neera Nathan posted a video showing a woman brushing her greasy hair, despite claiming she washed it “yesterday” and being shocked at its appearance . Dr Nathan suggests that if you’re “constantly” washing your hair to combat grease, you should heed her advice. For those with “oily hair,” she has revealed the “ultimate hair wash routine” to extend the time between washes. She assures it will “keep it looking fresh for longer,” but cautions there’s one step that isn’t particularly “sexy”. The first step involves switching to “a salicylic acid shampoo,” which Dr Nathan humorously describes as the “least sexy shampoo you have ever laid eyes on”. Despite lacking aesthetic appeal, Dr Nathan touts it as the “holy grail for greasy hair,” noting that while it won’t grace your Instagram stories, it’s effective. “She contains 3% salicylic acid to reduce sebum and exfoliate for squeaky clean roots,” Dr Nathan explains. For those seeking less grease and “thicker roots,” she recommends trying a shampoo with “both salicylic acid and ketoconazole”. Dr Nathan emphasised the importance of conditioning only the ends of your hair, advising it should be done “from about the mid-length down”. She stressed the need to find a conditioner that will “hydrate while also removing any residue that’s weighing down your hair”. “When you get out of the shower, opt for blow drying instead of air drying, to absorb excess oils and lift your roots,” she suggested. This process removes surplus moisture from both your hair and scalp, as when your scalp is damp for an extended period, it can create an environment where oil and sweat mix more readily, leading to greasier hair. Moreover, blow drying adds volume and lifts the roots, which aids in preventing the hair from lying flat against the scalp, reducing the direct transfer of oils from your scalp to your hair strands. By thoroughly drying your hair, you also prevent the accumulation of products and natural oils that can build up when hair is left to air dry, helping your hair stay fresher and cleaner for longer. Dr Nathan acknowledged that this might sound bizarre, but it works wonders if you’re a “sweaty Betty when you sleep or hit the gym”. If you “spray a little antiperspirant on your hairline”, it will “stop the scalp sweat that contributes to stringy pieces”. However, it’s crucial to be cautious and avoid getting antiperspirant directly on your scalp or hair, as some ingredients could cause irritation or dryness. Naturally, take care to protect your eyes as well, ensuring you shield them with a hand across your forehead to prevent any debris from entering.