Can you actually prevent acne on TRT, or is it just damage control?

What did @kmartfit actually say?

The creator claims that chlorophyll, specifically in the form of dehydrated broccoli and barley grass powders, will keep your skin "absolutely crystal clear" during testosterone replacement therapy. He frames hormone optimization as the first step, then positions his own greens product as the fix when that is not enough. To be direct about it: this video ends in a product pitch, and that context matters when evaluating the science behind it.

He says that incorporating chlorophyll "will keep your skin absolutely crystal clear." That is a strong, specific, causal claim about a cosmetic outcome from a dietary supplement. It is not qualified, not conditional, and not supported by the evidence available.

Does the science back this up?

Partially, but not in the way he presents it. There is some early research on chlorophyllin, a semi-synthetic derivative of chlorophyll, showing modest benefit for acne. The stronger evidence base for TRT-related acne points elsewhere entirely.

A 2015 pilot study by Zheng et al. in the Journal of Clinical and Aesthetic Dermatology found that topical chlorophyllin gel reduced acne lesion counts over three weeks, which is genuinely interesting. However, the study used topical chlorophyllin, not an oral greens powder made from broccoli and barley grass. Oral chlorophyll from food sources converts poorly to the active chlorophyllin form, and absorption varies widely. There is no clinical trial showing that dehydrated broccoli powder or barley grass powder clears acne in men on TRT. That gap between "chlorophyll exists in vegetables" and "my powder clears your skin" is where the science falls apart.

On the hormone side, the more established literature links TRT-related acne to elevated DHT and increased sebaceous gland activity driven by androgenic stimulation. Managing estradiol-to-testosterone ratios and DHT conversion, through dose adjustment or ancillary management, is where most clinical guidance actually lands.

What did they get wrong (or right)?

He gets partial credit for the hormone optimization point. Managing your levels properly before chasing supplement fixes is reasonable advice. Acne during TRT is often a sign of supra-physiological dosing, poor conversion management, or inadequate time for the body to adjust. That framing is directionally correct.

What he gets wrong is the leap to chlorophyll as a skin-clearing agent, and specifically his own product as the delivery vehicle. The claim that it "will keep your skin absolutely crystal clear" is not substantiated. That is not cautious health communication, it is marketing language dressed as a tip.

He also conflates chlorophyll from whole foods with the specific bioactive form studied in dermatology research. Broccoli contains chlorophyll. Dehydrated broccoli powder contains less of it. Chlorophyllin, the form with the most studied skin-related effects, is chemically distinct. These are not interchangeable, and treating them as equivalent is a meaningful scientific error.

• DHT-driven sebum overproduction is the primary mechanism behind androgen-related acne, per Zouboulis et al., 2014, Experimental Dermatology.
• No published RCT has tested oral greens powders specifically for acne in TRT patients.
• The Zheng 2015 study used topical chlorophyllin, not oral supplementation.

What should you actually know?

TRT-related acne is a real and common issue, and there are evidence-supported ways to address it. The first is exactly what he says: optimize your hormone levels. If testosterone is too high or DHT conversion is aggressive, adjusting dose or administration route is the most direct lever.

Beyond that, topical retinoids and benzoyl peroxide have strong evidence for acne broadly. Some TRT patients see benefit from reducing injection frequency or switching to more stable delivery methods to blunt hormone peaks. Dermatology referral is appropriate for persistent or severe cases. A greens powder is not a substitute for any of that.

If you enjoy greens powders for general nutrition reasons, there is no reason to stop. But if someone tells you a specific product will clear your acne, and they sell that product, you should hold that claim to a higher standard than a TikTok video can meet.