Anxiety Relief & Deep Sleep Stack
The AC-Selank + Delta Sleep Blend is a complete sleep protocol that first removes the anxiety and elevated cortisol preventing sleep onset, then actively drives the brain into deep delta-wave sleep for genuine physical restoration. Unlike any pharmaceutical sleep aid, it produces deeper sleep without suppressing REM, causing grogginess, or risking dependency.
Product
Research shows
Practical product identifiers and format details for professional review.
Content
15 mg
Format
Blend
Composition
5 mg/ml per ml
AC-Selank modulates GABAergic tone and normalises cortisol/ACTH secretion in the evening hours, reducing the physiological arousal state that prevents transition from wakefulness to sleep. As the GABAergic calming effect peaks, DSIP acts simultaneously to actively promote delta oscillation entrainment in the thalamocortical sleep circuits: the neurological mechanism that generates slow-wave sleep. Together, the peptides reduce sleep latency, increase total deep sleep duration, and restore the natural GH pulse that occurs during NREM stage 3: producing sleep that is both subjectively deeper and objectively more restorative.
Based on published research and preclinical data. All benefits are documented under research-grade conditions.
The anxiety and physiological arousal that prevent sleep onset are directly addressed by AC-Selank-NH2, which modulates GABAergic tone and normalises the elevated cortisol that characterises evening stress states. By resolving the neurological barrier to sleep initiation, the blend dramatically reduces sleep latency without the sedative suppression of normal sleep architecture.
DSIP (Delta Sleep-Inducing Peptide) was originally identified precisely for its capacity to promote delta oscillations in thalamocortical circuits: the neurological hallmark of NREM stage 3 deep sleep. Administered as the body transitions toward sleep, DSIP actively entrains the brain into the slow-wave patterns associated with physical recovery, immune function, and growth hormone release.
The majority of daily GH secretion occurs during NREM stage 3. In individuals with disrupted sleep architecture, this GH pulse is blunted or absent. By restoring genuine slow-wave sleep, this blend restores the associated GH pulse, with downstream benefits for recovery, body composition, and tissue repair that are absent with pharmacological sleep aids.
A dysregulated HPA axis (characterised by high evening cortisol) is one of the most common physiological barriers to quality sleep. AC-Selank normalises ACTH and cortisol secretion specifically in the evening, enabling the natural cortisol decline that signals the body to enter sleep mode. This addresses root cause rather than sedating over the problem.
Both components of this blend are free from addiction, tolerance formation, and withdrawal. DSIP does not act via benzodiazepine, opioid, or histamine pathways. AC-Selank has no known receptor-level tolerance. Users can cycle this blend for weeks and discontinue without any rebound insomnia or withdrawal effects.
Unlike pharmacological sedatives, this blend does not suppress REM sleep or cause morning grogginess. Restorative deep sleep generated via natural neurological mechanisms results in users reporting improved morning mood, alertness, and physical recovery: the primary outcome that distinguishes true sleep optimisation from mere sedation.
Explore selected publications on AC-Selank + Delta Sleep, with links to the original sources.
5 publications from the research library.
Evidence type
Publication and key finding
Source
Evidence type
Preclinical study
Selank component mechanism evidence
Publication and key finding
Laboratory and animal experiments linked Selank's anxiolytic activity to concentration-dependent allosteric modulation of GABA receptors.
Protein and peptide letters
Evidence type
Human randomized study
DSIP component double-blind human study
Publication and key finding
In 16 people with chronic insomnia, DSIP produced modest improvements in objective sleep efficiency and latency, although the broader effects were weak and not consistently different from placebo.
Neuropsychobiology
Evidence type
Preclinical study
Selank component gene-expression evidence
Publication and key finding
Selank administration altered expression of genes involved in GABAergic neurotransmission, supporting a molecular pathway for its observed anxiolytic activity.
Frontiers in pharmacology
Evidence type
Human clinical study
DSIP component human sleep study
Publication and key finding
In a crossover sleep study, DSIP reduced awakenings and sleep latency and increased total and NREM sleep versus baseline, but the differences from placebo were not significant.
International journal of clinical pharmacology research
Evidence type
Preclinical study
Selank component preclinical evidence
Publication and key finding
In rats exposed to unpredictable chronic stress, Selank reduced anxiety-like behaviour and enhanced the anxiolytic effect of diazepam.
Behavioural neurology
Labbieux pens are designed for 30 to 31 administrations of 10 clicks. With daily use, this corresponds to approximately one month. We recommend starting with 5 clicks and building up to 10 clicks per administration. More sensitive people may use fewer clicks.
Before using our pens, consult the manual.
The AC-Selank + Delta Sleep Blend is non-habit-forming and does not suppress normal sleep architecture. No morning sedation, cognitive impairment, or withdrawal effects have been attributed to either component in research settings. DSIP has been studied for decades without significant adverse effect documentation. AC-Selank shares the excellent tolerability profile of Selank. Mild injection site reactions are the most commonly noted observation from subcutaneous administration. No organ toxicity, cardiovascular effects, or hormonal interference have been documented.
This formulation combines AC-Selank-NH2 and Delta Sleep. The individual public COA for each component is listed below.
Each public COA documents one selected production batch and is updated annually. It is not the COA for our latest available batch. Every batch has its own documentation, and partners can request the latest batch COAs from our team.
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