Focus is not another word for stimulation.
A compounded Semax and Selank prescription pairing focus and calm without a stimulant mechanism or promise.
Compounded by a licensed US pharmacy to an individual prescription. Compounded preparations are not FDA-approved drug products.
About 10 minutes. No charge unless your clinician approves.
Engagement has more than one lever.
The hard version of cognitive work is not always getting started. Sometimes it is staying with the same difficult thing long enough to do something useful with it, while simply adding more stimulation already feels like the wrong direction.
Semax and Selank make that a two-track biological question.
Semax is a synthetic peptide built from an ACTH fragment with a Pro-Gly-Pro extension. In rats, Semax regulates BDNF and TrkB expression involved in how neural connections are maintained and remodeled.1 Selank is a synthetic analog of the immune-derived peptide tuftsin. Preclinical research shows changes in genes involved in GABAergic neurotransmission after Selank administration.2
Those findings do not turn the combination into a proven productivity treatment. They do give the pairing a more interesting rationale than “focus peptide”: two different research tracks around neural signaling, without pretending attention is one switch that simply needs to be turned up.
Semax and Selank bring complementary research tracks into one clinician-reviewed prescription: Semax in focus-related neural signaling and Selank in calm-related GABAergic signaling. The combination is evaluated alongside your medications, neurologic history, and mental health care.
For people whose work depends on staying with the hard thing.
The Long-Form Thinker
Your best work requires more than a burst of energy. It requires holding a complicated problem in mind long enough to get somewhere with it.
The Stimulation Ceiling
Caffeine and the obvious inputs are already part of the picture. You are interested in a different biological conversation, not simply a stronger version of the same one.
The High-Cognitive-Load Day
Writing, analysis, decisions, and sustained attention are not occasional demands. They are the job. You want a clinician to evaluate whether this combination belongs in the broader picture rather than buying a nootropic stack and hoping.
Semax received a favorable PCAC recommendation in July 2026, but that recommendation is advisory, FDA has not acted, and it applies only to Semax, not Selank or this combination. Selank has no FDA nomination or scheduled review. Both peptides have published Russian clinical literature and have been used as medicines in Russia, but neither is FDA approved in the United States. The preparation offered here is compounded and is not an FDA-approved drug product.
This might not be the right fit if:
- You are pregnant or breastfeeding.
- You have a known hypersensitivity to any component of the preparation.
- You are being treated for a significant neurologic or mental health condition and the combination has not been cleared with the relevant clinician.
- You take medications that substantially affect the central nervous system and your provider has not reviewed them.
- You are under 18.
Your intake screens for all contraindications. Every candidate is evaluated by a licensed clinician before any prescription is issued. No prescription is issued without clearance.
Semax / Selank, prescribed with care.
Compounded by a licensed 503A pharmacy. Prescribed by a licensed provider after clinical review.
- An independent licensed provider reviews your full Assessment and gives you a real answer either way.
- Medications and relevant neurologic and mental health history are reviewed before treatment is prescribed.
- If approved, your dose and duration are set for you, with follow-up built into your care.
- Provider review, the prescription if approved, pharmacy, and shipping handled inside one plan.
Compounded by a licensed US pharmacy to an individual prescription. Compounded preparations are not FDA-approved drug products.
*Price reflects a 3 month commitment. Other billing options are shown at checkout.
Serious risks
- Controlled human safety data for this compounded injectable combination are limited
- Both peptides are studied for activity involving the central nervous system
- The effects of combining them, using them by injection, or taking them alongside psychiatric, neurologic, or stimulant medications have not been well characterized in controlled trials
- Pregnancy and breastfeeding safety are not established
Because it is an injection
- Published human work on Semax and Selank comes largely from Russian literature and generally studied intranasal preparations
- Tolerability data from those routes do not automatically transfer to an injection
- Injection-site reactions are possible with any injected preparation
Your provider reviews medications, neurologic history, mental health treatment, and other relevant risks before prescribing.
Asked and answered.
You are not charged, and you are not left guessing. Your clinician explains the reasoning and, where it helps, what a better path might look like. Reviews are typically completed in under 24 hours.
AnthologyRX+ does not present this combination as any of those things. It is not an FDA-approved stimulant and it is not being offered as a treatment for a psychiatric diagnosis. If attention, anxiety, depression, or another diagnosed condition is the primary concern, that belongs in the provider review because established treatments and existing medications may be more relevant.
Semax received a favorable recommendation from the Pharmacy Compounding Advisory Committee in July 2026. That recommendation is advisory, FDA has not acted, and it covers only Semax, not Selank or the combination offered here. Selank has no corresponding US review pathway. No compounded medication is FDA-approved, including this one. Compounded medicines are made to your individual prescription by a licensed pharmacy rather than manufactured and approved as a finished drug product.
Both have been used as medicines in Russia, and published Russian clinical literature exists for each. That is not a US approval and it does not establish that the compounded injectable preparation offered here is equivalent to a Russian finished drug product. Different formulation, route, indication, and regulatory system all matter when interpreting those studies.
Semax research includes animal studies linking the peptide to BDNF and TrkB signaling, while Selank research includes preclinical work involving GABA-related neurotransmission.12 Older Russian human studies also exist, but they evaluated different preparations and clinical populations. The evidence does not establish that this compounded injectable combination improves attention, memory, productivity, or cognitive performance in the population AnthologyRX+ serves.
The nootropic market is very good at turning interesting mechanisms into confident promises. AnthologyRX+ does the opposite. A licensed provider reviews whether the combination belongs in your care, and a licensed US pharmacy compounds it to an individual prescription. The FDA has found products sold as research chemicals under false labels, some naming compounding pharmacies that do not exist, and warns they “can pose risks of serious harm” by bypassing the body’s defenses.F4 Testing has found wide variation in purity and in how much of the compound is actually in the vial. The point is not to make the science sound less interesting. It is to put interesting science inside a medical process strong enough to distinguish a rat mechanism, a Russian clinical record, and a claim about what will happen to you.
- Dolotov OV, et al. Semax, an analog of ACTH(4-10) with cognitive effects, regulates BDNF… Brain Res. 2006.PubMed
- Volkova A, et al. Selank Administration Affects the Expression of Some Genes Involved in… Front Pharmacol. 2016.PubMed
- FDA, Concerns with Unapproved GLP-1 Drugs Used for Weight Loss, and FDA Warning Letter to Gram Peptides, March 31, 2026.