Can you bleach arm hair with lemon juice?

Yes, lemon juice can be used to lighten arm hair, as its natural acidity can help bleach the hair when exposed to sunlight. To use it, mix lemon juice with water and apply it to the hair, then spend some time in the sun for the best effect. However, results may vary, and this method may not be as effective as commercial bleaching products. Additionally, lemon juice can be drying to the skin, so it's advisable to moisturize afterward.