Semax on TikTok: separating nootropic hype from actual research

What did @dayanara.wellness actually say?

Almost nothing, technically. The entire transcript is song lyrics: "I'm so lucky, lucky, lucky, I'm so lovely, lovely." There are no spoken claims about peptides, semax, skincare, or biohacking anywhere in the audio. The only signals pointing toward a health topic are the hashtags: #tides, #semax, #biohacking, and #skincare.

That's it. Whatever this video is communicating, it's communicating through association, not argument. The caption says "just so good overall," which could refer to a product, a feeling, a routine, or nothing at all. Without a spoken or written claim to evaluate, we're essentially fact-checking vibes.

Does the science back this up?

There's nothing to back up or refute because no claim was made. But since the hashtags invoke semax and peptide biohacking, it's worth noting what the actual evidence looks like. It's thin, and mostly preclinical.

Semax is a synthetic analogue of ACTH(4-7), originally developed in Russia for stroke recovery and cognitive support. Some small human trials, including work by Kaplan et al. (2011, Zhurnal Nevrologii i Psikhiatrii), found improvements in attention and memory in patients with cognitive impairment. The mechanism involves BDNF upregulation and modulation of dopaminergic and serotonergic systems. However, the overwhelming majority of semax research comes from Eastern European institutions, uses small sample sizes, and hasn't been replicated in large, randomized controlled trials in Western clinical settings. The evidence base for "biohacking" applications in healthy adults is essentially nonexistent.

What did they get wrong (or right)?

Since no claim was made, nothing was technically wrong. But the framing deserves scrutiny. Pairing song lyrics about feeling lucky and lovely with hashtags like #semax and #biohacking is a form of implied endorsement. The message is: I use this thing, I feel this way, you can connect the dots.

That's a pattern worth flagging. Implied claims in wellness content often fly under the fact-check radar precisely because they're never stated outright. No one said semax makes you feel lucky. But the video exists to suggest exactly that. If a viewer walks away thinking a peptide nasal spray caused someone to feel radiant and grateful, that's a health claim by any reasonable standard, just one that's legally and rhetorically deniable.

On the skincare angle: GHK-Cu has more legitimate topical data than semax does, including work by Pickart and Margolina (2018, Cosmetics), but the hashtag here is #semax, not GHK-Cu. Conflating peptides as a general category is a common mistake in biohacking content.

What should you actually know?

Semax is not FDA-approved and is not legally marketed as a drug or supplement in the United States. It is available through some compounding pharmacies as a research chemical. Anyone consuming it outside a supervised clinical context is doing so without regulatory oversight, standardized dosing protocols, or long-term safety data in healthy populations.

The hashtag #biohacking normalizes self-experimentation with compounds that have real pharmacological activity. Semax acts on the central nervous system. That's not inherently dangerous, but it's not a skincare ingredient either. Treating it like a wellness lifestyle accessory because it makes you feel "lovely" skips over the part where you'd want a clinician involved.

If you're curious about peptide therapy, that's a legitimate conversation to have with a licensed provider who can review your health history, discuss actual evidence, and monitor outcomes. A TikTok with song lyrics is not that conversation.