Applying lemon juice on the hair can have both beneficial and potentially harmful effects, depending largely on your individual prakriti, or body constitution, and the overall condition of your hair and scalp. The acidity of lemon, which is mainly due to citric acid, can help in lightening hair gradually over time when used in moderate quantities. It indeed makes hair appear shinier, and also, it has an astringent property that might help reduce dandruff by balancing the sebum levels on your scalp. However, as you experienced, prolonged contact or frequent use can lead to dryness and itchiness, which are common responses when the scalp’s natural oil balance is disrupted.
From a Siddha-Ayurvedic perspective, lemon can aggravate a Pitta imbalance if used excessively, leading to increased scalp sensitivity, itchiness, and a sensation of heat. This is because its acidic nature can dry out the scalp, potentially leading to Vata imbalances as well. If you notice itching or dryness, these might be signs that your scalp’s protective barrier is compromised.
To avoid potential detrimental effects, applying lemon juice on hair in moderation is crucial. If you decide to use it again, mix it with a bit of coconut oil or another calming hair oil to mitigate its drying effects. Apply it for about 10-15 minutes at most, once a week. Always ensure you rinse it out thoroughly with a gentle shampoo afterward. Avoid using lemon treatments if your scalp is already dry or sensitive.
In terms of whether the effects fade, yes, any lightening would lessen as new hair growth appears, and you wash your hair regularly, though the shine might remain temporarily. But habitual use could lead to cumulative damage, so caution is always best. If dryness persists or worsens, consider incorporating more nourishing herbal treatments. Amla (Indian gooseberry) oil or Bhringaraj oil could help restore moisture and soothe your scalp. If problems persist or worsen, it may be wise to consult a natural healthcare practitioner for personalized advice.



