What did @zahloria actually say?
In a 554K-view TikTok, @zahloria recommends cycling through peptides and antioxidants for acne and skin quality. The pitch goes roughly like this: start with glutathione and KPV for active acne and inflammation, because they work on the gut-skin axis and "detox your liver." Once that's handled, switch to GHK-Cu for collagen, elasticity, and what she calls "that really good skin glow." It's a sequenced protocol, not a single-ingredient recommendation. The framing is casual but specific, and that specificity is worth examining.
The creator is essentially splitting peptides into two functional categories: anti-inflammatory first, then regenerative. That logic isn't completely wrong. But several individual claims underneath that framework range from unsupported to oversimplified in ways that matter.
Does the science back this up?
Partially, and the "partially" is doing a lot of work here. KPV is a tripeptide derived from alpha-MSH, and its anti-inflammatory properties are real in laboratory and animal models. A 2017 study by Dalmasso et al. in PLOS ONE showed KPV reduced inflammatory markers in colitis models by acting on NF-kB pathways. GHK-Cu's role in collagen synthesis is probably the best-supported claim in the video, backed by Pickart et al. across multiple papers including a 2015 review in Journal of Aging Research.
Glutathione is trickier. Oral bioavailability of glutathione has historically been questioned, though a 2014 randomized trial by Richie et al. in European Journal of Nutrition found that sustained supplementation did raise blood levels. The liver detox claim, however, is a folk wellness shorthand, not a clinical mechanism that maps cleanly onto acne pathogenesis.
What did they get wrong (or right)?
The "detoxes your liver" framing for glutathione is the weakest moment in the video. Glutathione is involved in hepatic conjugation reactions, yes, but calling it a liver detox that then clears acne skips several mechanistic steps the evidence hasn't actually connected. That's misleading even if it sounds plausible.
The recommendation to prioritize KPV over GHK-Cu for active acne inflammation is more defensible. GHK-Cu does have some anti-inflammatory properties, but its strongest research signal is around tissue remodeling and collagen. Saving it for a maintenance phase isn't bad logic.
What @zahloria gets right: framing KPV as anti-inflammatory rather than a direct acne treatment is appropriately modest. She doesn't claim these peptides cure acne, which keeps her in safer territory than most wellness TikToks. The sequencing idea, reduce inflammation first, then support skin quality, reflects how some dermatology protocols actually think about treatment phases.
What should you actually know?
Almost none of this has been tested in human clinical trials for acne specifically. KPV's anti-inflammatory data comes almost entirely from gut and mucosal tissue studies in rodent models. Extrapolating that to topical or systemic acne management in humans is a leap the current evidence doesn't justify, even if the mechanism sounds plausible.
GHK-Cu has more human data, particularly in wound healing and skin aging contexts, but again, the acne application is largely theoretical. Glutathione has legitimate antioxidant biology behind it, but the route of administration matters enormously, and the video doesn't address whether topical, oral, or injectable forms are being discussed.
If you have hormonal or inflammatory acne, these aren't replacements for established treatments. A dermatologist or licensed provider can assess whether any peptide adjunct makes sense alongside evidence-backed options. Sequencing supplements based on a TikTok framework, without bloodwork or a clinical picture, carries real risk of delaying care that would actually work.
The bottom line on this video
@zahloria is working with real ingredients and a coherent-sounding framework. The sequencing logic has some biological plausibility, and she avoids the worst wellness-influencer traps of making cure claims. But the mechanistic leaps, especially around glutathione "detoxing" the liver to clear acne, and the assumption that rodent-model anti-inflammatory data translates directly to human acne, are gaps the video doesn't acknowledge. Credit where it's due, but verify before you buy anything.