Ingredients That Are Mostly Marketing

Let me say upfront that "doesn't work" is a strong claim. A lot of these ingredients have some research behind them. A lot have anecdotal support. Some genuinely do something, just not the dramatic thing the packaging promised.

What I'm calling out in this chapter is the gap between what's claimed and what's delivered. Skincare marketing has gotten very good at borrowing the language of science to sell things that don't have the science behind them. I want you to recognize the patterns so you can stop falling for them.

This chapter will probably annoy you in at least one place. Something you've been using and loving is going to show up, and your first reaction is going to be to defend it. That's normal. Read the section anyway. You can keep using whatever you want. I just want you to keep using it with clear eyes about what it is and isn't doing.

Collagen in a Cream

Collagen creams are everywhere. The pitch makes intuitive sense. Your skin loses collagen as you age. So you put collagen on your skin to replace it. Right?

Wrong, unfortunately.

Collagen is a large protein molecule. It's far too big to penetrate the outer layers of your skin. When you put collagen on your face, it sits on top, possibly providing some surface moisture, and then washes off when you clean your face that night.

Your skin makes its own collagen, and it does so based on signals from things like vitamin C, retinoids, peptides, and physical interventions like microneedling or lasers. Topical collagen does not signal your skin to make more.

The "marine collagen" trend, the "collagen-boosting" creams, the "collagen drinkable powders," all of them face the same biology problem. Eating or drinking collagen breaks it down in your digestive system into amino acids, which your body then uses for whatever it needs, not specifically for skin collagen production.

If you want to support collagen, use a retinoid, use vitamin C, consider in-office treatments that stimulate collagen production. Skip the collagen cream.

Stem Cells in Skincare

You'll see this on luxury skincare lines. "Plant stem cells." "Apple stem cells." "Anti-aging stem cell technology."

Here's the issue. Stem cells, by definition, are living cells. The "stem cells" in your skincare are not alive. They cannot function as stem cells in your skin. What you're getting is plant cell extracts that may contain some antioxidants and possibly some useful compounds, but they are not doing what real stem cells do.

This is one of the most cynical marketing categories in the industry, because the science is genuinely interesting (real stem cell research is happening in labs), and the word "stem cell" sounds technical and cutting-edge. But the products on the shelf are using the term loosely at best and misleadingly at worst.

If a product is selling you "stem cells" as the active ingredient, you're paying a premium for the marketing, not the result.

"Detoxifying" Anything

Your skin does not need to be detoxified. Your liver and kidneys handle detoxification. Your skin barrier's job is to keep things out, not to release toxins through your pores.

When a product claims to "draw out toxins," what it's actually doing is one of two things. If it's a clay mask, it's absorbing oil and surface debris, which can be useful for clogged pores but is not removing toxins. If it's some kind of foot pad or "detox" mask that turns dark or changes color, it's a chemistry trick. Those products use ingredients that react with sweat or moisture to change color, which is then sold as "evidence" of toxins being pulled out.

Marketing that uses the word "detoxify" is almost always marketing first and science second. The skin doesn't work this way. Toxin language in skincare is a red flag.

"Pore-Shrinking" Products