Mewing, looksmaxxing, and peptides: separating TikTok from science

What did @ultimatelooks1 actually say?

Straightforwardly: nothing about peptides, health, or looksmaxxing science. The transcript is song lyrics. Specifically, it appears to be a fragmented rendering of Lady Gaga's "Applause" mixed with unrelated filler: "I live for the applause, pause, live for the applause, pause." There are no health claims, no peptide references, no mewing tutorials, and no supplement recommendations anywhere in the spoken content. This is a lip-sync or audio-overlay video, full stop.

The caption tags @Umax App and stacks hashtags like #mewing and #looksmax, which places the video inside the looksmaxxing and male appearance optimization community on TikTok. But the creator does not actually speak to any of those topics. Whatever visual content accompanies the audio, the transcript itself contains zero factual assertions about biology, facial structure, or peptide therapy.

Does the science back this up?

There is no claim here to evaluate against science. That is the honest answer. The looksmaxxing community this video is tagged into does make claims worth scrutinizing, including that mewing (sustained tongue posture against the palate) reshapes adult facial bones, that certain peptides like GHK-Cu improve skin collagen density, and that tools like AI face-rating apps have predictive validity. But none of those claims appear in this transcript.

For context on the broader space: mewing as a bone-remodeling intervention in adults lacks peer-reviewed support. Orthodontic and craniofacial literature does document tongue posture effects on palate development in children and adolescents (Proffit et al., 2019, Contemporary Orthodontics), but adult bone plasticity in response to tongue posture alone has not been demonstrated in controlled trials. GHK-Cu, a copper peptide, has some legitimate research on fibroblast activity and skin repair in vitro (Pickart et al., 2015, Journal of Aging Research), though in-vivo human trials remain limited.

What did they get wrong (or right)?

Neither. There are no claims to score. That sounds dismissive, but it is the accurate read. The creator sang song lyrics and said "thank you for watching." Holding that to a scientific standard would be absurd, and pretending otherwise would be worse journalism than the video itself.

What is worth flagging is the platform context. Videos like this, which carry zero informational content but are heavily tagged with terms like #mewing, #looksmax, and #peptides (implied by the category), function as community-building content rather than advice content. They normalize an ecosystem where other creators in the same hashtag space do make specific, often unsupported claims. The @Umax App promotion in the caption is worth a raised eyebrow. AI face-rating tools have no validated clinical basis for assessing health, attractiveness, or optimization potential. They are entertainment products, not diagnostic tools, and marketing them inside health-adjacent communities can blur that line.

What should you actually know?

If you landed here because you are curious about peptides for skin, recovery, or appearance optimization, the honest summary is this: the evidence base is uneven and context-dependent. Some peptides have legitimate research behind them in specific applications. Others are being sold on vibes and influencer adjacency.

GHK-Cu has published data on wound healing and collagen stimulation, primarily in vitro and in animal models. BPC-157 has animal data on tendon and gut repair, but human clinical trials are limited and it is not FDA-approved. MK-677 (ibutamoren) raises IGF-1 and GH levels in humans (Nass et al., 2008, Journal of Clinical Endocrinology and Metabolism), but carries real risks including insulin resistance and edema that are routinely underreported in looksmaxxing content. Semax and selank have Soviet-era and Russian clinical literature but almost no Western peer-reviewed trial data.

None of these are things you should start based on a TikTok video, including this one, which did not even recommend them. Talk to a licensed clinician who can assess your individual situation before considering any peptide protocol.