formula comparison

Why do people hate the new formula of Neutrogena Deep Clean Cream Cleanser?

About a year ago, people suddenly started complaining about this cleanser. Why? My dad dissects some interesting clues.

For many years, I was an avid fan of Neutrogena Deep Clean Cream Cleanser, because it made my face feel nice and cool after I rinsed it off. Recently, I was shopping for a new face wash, and I decided to check out my old favorite, to see if I wanted to try it out again after many years of absence.

CeraVe Foaming Facial Cleanser Update: What changed in the new formula?

What changed in the CeraVe Foaming Facial Cleanser's new formula? Let's hear My Dad the Chemist's take on the changes.

I recently received a request from a reader, asking me to compare the old CeraVe Foaming Facial Cleanser against the new formula. The reader wanted to know why the new formula was making her and her husband break out, whereas the old formula had been a favorite of theirs for years. First of all, reader, I feel your pain. I understand the frustration of realizing that a formerly holy grail product no longer makes your skin happy—simply because the company decided to change its formula for some…

CeraVe Facial Moisturizing Lotion PM Update: What changed in the new formula? (2018 edition)

If you love CeraVe Facial Moisturizing Lotion PM, is the new formula something to panic about? Plus, let's hear My Dad the Chemist's take on the changes.

Note: Check out the latest post about the formula change that occurred in 2020