Detailed answer

Hair pseudofolliculitis barbae, commonly known as razor bumps, occurs when curved hairs grow back into the skin and cause inflammation. While allergies to skincare products, such as shaving creams or after-shave lotions, can aggravate the condition, they are not the primary cause. The main factors leading to pseudofolliculitis barbae are hair type, improper shaving techniques, and genetics. Individuals with tightly curled or coarse hair are more prone to developing razor bumps because the hair easily curves and penetrates the skin. Additionally, shaving too closely or against the grain, as well as using dull blades, can contribute to the condition. Genetic predisposition also plays a role, as certain ethnic groups have a higher likelihood of developing razor bumps. Therefore, while skincare product allergies can worsen hair pseudofolliculitis barbae, they are not its primary cause.