What type of product should a barber avoid using directly on the skin before shaving?

The choice to avoid using alcohol-based aftershave directly on the skin before shaving is based on the properties of alcohol that can be quite harsh when applied to the skin. Alcohol tends to be very drying and can irritate the skin, leading to discomfort during the shaving process. Applying such a product before shaving can compromise the skin's natural barrier, making it more prone to nicks, cuts, and irritation from the razor.

In contrast, products like shaving cream, pre-shave oil, and moisturizing lotion are specifically formulated to prepare the skin for a smooth shave. Shaving cream provides lubrication, reducing friction and helping the razor glide more easily over the skin. Pre-shave oil helps to soften the hair and moisturize the skin, creating a protective layer that reduces irritation. Moisturizing lotion hydrates the skin, making it more resilient during the shaving process. Therefore, avoiding alcohol-based aftershave prior to shaving is significant for ensuring a smoother and more comfortable shaving experience.