S4

SARM Cutting Stack

$59.95 AUD

Purity: 99%

S4, also known as Andarine, is an investigational selective androgen receptor modulator (SARM) that exhibits high affinity for androgen receptors in target tissues. Unlike traditional anabolic steroids, S4 is designed to selectively modulate androgenic signaling pathways, primarily in muscle and bone. This selectivity aims to mitigate systemic androgenic side effects while promoting anabolic effects, making it a compelling subject for research into tissue-specific anabolism.

How It Works

Andarine functions as a partial agonist of the androgen receptor. Its binding to the androgen receptor initiates a conformational change that recruits coactivator proteins, leading to increased gene transcription involved in muscle protein synthesis and bone mineralization. The partial agonist activity contributes to its tissue selectivity, potentially allowing for anabolic effects in skeletal muscle while exhibiting reduced androgenic activity in other tissues such as the prostate or sebaceous glands.

Research Applications

Research into S4 primarily focuses on its potential for supporting lean tissue retention during caloric deficits and its role in body recomposition studies. Its selective action profile offers a promising avenue for investigating therapeutic strategies that differentiate between anabolic and androgenic outcomes. Further studies are exploring its utility in models of muscle wasting and bone demineralization.

Why Elite Peptides

Elite Peptides guarantees S4 of ≥99% HPLC purity, rigorously verified through third-party laboratory testing. Our peptides are lyophilized and maintained under strict cold-chain conditions to preserve their structural integrity and research efficacy.

Benefits

Fat mobilization—AOD‑9604 is a truncated GH fragment shown in preclinical research to promote lipolysis and reduce lipogenesis, making it a common component of cutting research stacks.
GH‑axis stimulation—CJC‑1295 (with or without DAC) and Ipamorelin increase pulsatile growth hormone release in published peptide literature, supporting GH‑axis activation in research settings.
Lean mass preservation—GH‑releasing peptides such as CJC‑1295 and Ipamorelin are used in research protocols to help preserve lean body mass during caloric deficit.
Improved recovery—Increased GH pulses from CJC‑1295/Ipamorelin have been associated in studies with tissue repair and recovery processes in research contexts.
Metabolic support—Activation of the GH axis and direct lipolytic action of AOD‑9604 can affect substrate utilization and metabolic rate in experimental settings.
Synergistic action—Combining a lipolytic peptide (AOD‑9604) with GH‑releasing peptides (CJC‑1295/Ipamorelin) is used in research to target both direct fat‑mobilization and GH‑mediated metabolic pathways.

Potential Side Effects

Injection site reactions—Subcutaneous injections commonly cause mild redness, itching, bruising, or local irritation in research reports.
Water retention—GH‑axis stimulation can be associated with transient fluid retention or bloating in some participants in the literature.
Numbness or tingling—Some users in clinical reports and case series have noted transient paresthesia or tingling sensations with GH‑releasing peptides.
Glucose metabolism changes—Growth hormone activity can alter insulin sensitivity and glucose homeostasis; monitoring is recommended in research contexts.

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