Do Skin Tags Fall Off if You Fix Your Insulin? What the Evidence Actually Shows

There is a very satisfying story going around about skin tags.

It goes like this. Skin tags are a sign of high insulin. Fix your insulin, cut the sugar, change one habit, and your skin tags will dry up and fall off. One popular podcast episode on exactly this has a quarter of a million views. Another video promising skin tags gone “overnight” has more than four million.

I spent two decades in medicine before coaching, and I work on both sides of this question at Vicaria: the nutrition side that deals with insulin resistance, and the skin side that offers cosmetic skin tag removal in Hamilton. So I want to separate the part of that story that is well supported from the part that is not, because they are being sold as one thing.

The part that is true

Having many skin tags is consistently associated with insulin resistance, type 2 diabetes and the wider cluster called metabolic syndrome. This shows up repeatedly in dermatology research, and it is a reasonable thing for a doctor to notice in someone who has developed a lot of them.

There is a plausible mechanism behind it, too. High insulin levels act as a growth signal for skin cells, which is the same reason insulin resistance is linked to velvety darkened patches in skin folds, called acanthosis nigricans.

So the starting point of the story is fine. I wrote about it in more detail in why you keep getting skin tags.

The part that is not established

The leap is from “skin tags are associated with high insulin” to “lower your insulin and the skin tags you have will fall off.”

I am not aware of good-quality evidence for that second claim. It mostly rests on personal stories, often from people selling a diet, a supplement or a programme. And personal stories about skin tags have some built-in problems:

• Skin tags sometimes fall off anyway. More on that below. Some of them will drop off during any diet, or none.
• Nobody counts them beforehand. “I don’t have skin tags anymore” is hard to check against a number nobody wrote down.
• People who changed their lives also get things removed. Ask how the tags left, and the answer is sometimes a dermatologist.
• Fewer new ones is not the same as old ones disappearing. That distinction gets lost.

What is plausible is that last point. Friction, weight and insulin resistance are all part of why skin tags form, so improving them may mean fewer new ones over the years. That is a slow, indirect effect and not something anyone can promise you. It is also a very different claim from “they dried up and fell off.”

When skin tags really do fall off

They do, sometimes, and it is worth knowing what that looks like.

A skin tag hangs on a thin stalk that carries its blood supply. If the stalk twists, from clothing, a necklace or just movement, the blood supply is cut off. Over a few days the tag turns dark red, purple or black, may feel a little sore, then dries out and drops off. It can be alarming to see a skin tag suddenly turn black, but this is a known and usually harmless way for them to go.

Two cautions. First, a spot that turns dark without an obvious twist or snag, or that you are not sure was a skin tag to begin with, should be looked at by a doctor. Dark and changing is on the list of signs that need a physician. Second, this is not something to try to bring about with thread or bands at home; we explain why tying them off goes wrong.

Vicaria does not diagnose skin conditions. Our practitioners are not licensed physicians or dermatologists in Ontario, and a description on a webpage cannot tell you what a spot is.

Why the story is still worth taking seriously

Here is the uncomfortable part for the people debunking it. The diet advice in those videos is not always bad. If you have insulin resistance, eating differently, moving more and sleeping better genuinely helps. That part deserves your attention.

The problem is the scoreboard. If you change how you eat for three months and judge it by whether your skin tags fell off, you will probably decide it did not work, at exactly the moment it was starting to. That is the most common way I see good changes get abandoned.

So use a better scoreboard:

• Fasting glucose and A1C, which your family doctor can order, and which are covered.
• Waist measurement, energy, sleep, and how your clothes fit.
• Not your neck.

If you have a lot of skin tags and have not had bloodwork recently, mention it at your next appointment. That is a normal request and the only step that gives you an actual answer. And if your numbers land in the prediabetes range, that is the point where nutrition and habits have the most leverage of the whole progression. I explain what insulin resistance actually is and why the standard advice so often underperforms.

Two separate reasons, two separate services

What I tell people who ask us about both:

Your metabolic health is a reason to get bloodwork and, if the numbers are off, to work on how you eat and live. That is what Vicaria’s prediabetes nutrition support and diabetes coaching are for, alongside your doctor’s care.

Your skin tags are a reason to have them removed, if they catch, bleed when snagged or just bother you. Waiting for them to fall off as a reward for eating well is not a plan.

You can do either without the other. Plenty of people come in, have six tags removed and leave, and that is a perfectly good appointment.

Removal in Hamilton

Vicaria offers cosmetic skin tag removal at Unit 2B, 144 James St S in downtown Hamilton, serving Ancaster, Dundas, Stoney Creek, Waterdown, Burlington and Grimsby.

• A visit: $99, HST included, covering the in-person consultation and the first tag
• Each extra tag in the same visit: $20
• Never more than $299 a visit, however many tags, and the same price whatever the size or where on the body

Several tags in one region are usually handled in one appointment: three come to $139, five to $179. Removal deals with the tags treated; it does not change the reasons they formed, and new ones can still appear over time.

Call (365) 336-9757 or message us on WhatsApp.

Important: a spot that is new, changing, turning dark without an obvious cause, bleeding on its own, painful or irregular should be assessed by a licensed physician or dermatologist before any cosmetic removal.