March 20, 2026
Estimated reading time: 2 minutes
Key Takeaways
- Foaming cleansers are not necessarily harsh; they can be safe for sensitive skin if carefully crafted.
- Many dermatologists caution against foaming cleansers due to their association with harsh surfactants like sodium lauryl sulfate.
- While sulfates can irritate the skin, combining gentler surfactants or using a foamer pump can create desirable foam without harsh effects.
- The MeridaSKIN Tea Tree Foaming Facial Cleanser demonstrates a non-irritating formula with effective foaming characteristics.
This one is easy. Foaming cleansers are not necessarily harsh. In fact, it is possible to find foaming cleansers safe for sensitive skin. Then why do so many dermatologists, skin care professionals and bloggers recommend against them for people with compromised or easily irritated skin? Mainly: foaming cleansers are guilty through their frequent association with certain ingredients. In particular, foaming cleansers often use some of the harsher surfactants. Foaming cleansers can use harsh surfactants to produce their foam, but they don’t always.
As an example, surfactants in the sulfate family, such as sodium lauryl sulfate, are often the true culprit when it comes to harshness in a foaming cleanser. The sulfates are relatively cheap and produce excellent foam, making them a favorite of cosmetic formulators over the years. Unfortunately, some of the sulfates are also known to cause skin irritation. Still, the appeal of their low cost and superior sensory characteristics wins out for some formulators.
The good news is that nice foam can also be produced by combining two or more of the gentler surfactants. It can also be produced by simply using a pump that introduces air as the product is dispensed. The bottom line is that sulfates should be off the ingredient list for sensitive skin sufferers, but foaming cleansers needn’t be. The MeridaSKIN Tea Tree Foaming Facial Cleanser uses both strategies (a combination of gentle surfactants and a foaming pump) to achieve its exceptional texture, while earning perfectly non-irritating results on repeated insult patch testing.
Knowledge is power. Cheers to empowered skincare.
Shannon L. Johnson NP-C
Founder & Formulator, MeridaSKIN
Shannon is a nationally-certified Family Nurse Practitioner with twenty years of internal medicine experience. She holds Bachelor's degrees from the University of Pennsylvania and Simmons University, a Master's degree from Simmons University, and completed a post-graduate program at the University of Massachusetts Boston. She has worked in primary, emergency and urgent care settings. Ms. Johnson has precepted nurse practitioner students for clinical rotations, mentored new graduate nurse practitioners, and served as adjunct faculty teaching graduate-level pathophysiology and advanced pharmacology. She completed courses in cosmetic formulating to solve her own skin struggle with rosacea, ultimately formulating and founding MeridaSKIN. Shannon enjoys spending time in the beautiful outdoors with her husband and kids.
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