Glycerin Cleansing Bar is a classic bar soap, and although soap may seem like a great way to get clean, its negative effects on skin aren't something guys should "tough out." The major issue with bar soap is that it's highly alkaline; that is, it has a high pH. Skin's normal pH is about 5.5, while most bar soaps have a pH of around 8 to 10, which negatively impacts the surface of skin by causing irritation and increasing the presence of bacteria on and in the skin.
There is research showing that washing with a cleanser with a pH of 7 or higher, which is true of many bar soaps and bar cleansers, increases the presence of bacteria significantly when compared with using a cleanser with a pH of 5.5 (Sources: American Journal of Clinical Dermatology, volume 10, Supplement 1, 2009, pages 13–17; Cutis, volume 78, Supplement 1, July 2006, pages 34–40; Dermatologic Therapy, volume 17, Supplement 1, 2004, pages 26–34; Clinics in Dermatology, January-February 1996, pages 23–27; and Dermatology, 1995, volume 191, issue 4, pages 276–280).
In short, bar soaps clean well, but their side effects aren't worth the trade-off, not when there are countless gentle yet effective body washes to consider instead.
One more comment: This soap is highly fragrant, and the fact that soap leaves a residue on skin means that the fragrance ingredients linger, from head to toe, potentially causing itching, dryness, and more irritation (see More Info for details).
- Bar soap is drying for all skin types.
- Highly fragrant.
- Formula leaves a residue on skin that can be irritating, and eventually will make skin look dull.
Daily use of products that contain a high amount of fragrance, whether the fragrant ingredients are synthetic or natural, causes chronic irritation that can damage healthy collagen production, lead to or worsen dryness, and impair your skin's ability to heal. Fragrance-free is the best way to go for all skin types. If fragrance in your skin-care products is important to you, it should be a very low amount to minimize the risk to your skin (Sources: Inflammation Research, December 2008, pages 558–563; Skin Pharmacology and Physiology, June 2008, pages 124–135, and November-December 2000, pages 358–371; Journal of Investigative Dermatology, April 2008, pages 15–19; Journal of Cosmetic Dermatology, March 2008, pages 78–82; Mechanisms of Ageing and Development, January 2007, pages 92–105; and British Journal of Dermatology, December 2005, pages S13–S22).