S4 25 mg Astera Labs

Description

S4 25 mg Astera Labs — This Astera Labs formulation delivers andarine (S-4) is a first-generation SARM producing moderate muscle-building effects with notable fat loss and hardening properties. It creates a lean, dry physique similar to Winstrol but with significantly reduced side effects. Particularly valued during cutting phases. This formulation is dosed at 25 mg per unit.

Key Benefits

• S-4 SARM — selective androgen receptor activation with partial profile
• Effective at body-recomposition dosing
• Distinct visual side-effect (yellow tinge) from ocular-pigment binding
• Oral once or twice daily
• Mild HPTA suppression — mini-PCT advisable
• Each unit dosed at 25 mg — see Recommended Dosage below for protocol-specific intake

Recommended Dosage

Research dosing: 25–50 mg/day split twice daily for 6–8 weeks. Split dosing smooths plasma. Above 50 mg/day the visual side-effect (yellow tinge / night-vision impairment) amplifies.

How It Works

Selective androgen receptor modulator with partial agonism profile. Tissue-selective effect on muscle and bone with minimal prostate/skin impact. Downstream anabolic signal milder than full-potency SARMs (ligandrol, RAD-140).

Pharmacokinetics

Plasma half-life approximately 4 hours — twice-daily dosing required. Oral bioavailability reasonable. Reconstituted oil or powder stable at room temperature.

Potential Side Effects

Signature visual disturbance: yellowing tint to vision, especially in low light. Resolves within 1–2 weeks of discontinuation. Mild HPTA suppression. HDL drops slightly.

Cycle & Stacking Guide

6–8 week cycles, 25–50 mg/day. Mini-PCT (Nolva 20 mg × 3 weeks) after 8-week runs. Often stacked with Ostarine or cardarine for cutting protocols.

Manufacturer Notes

Astera Labs produces a broad catalogue from research peptides to AAS oils. Lyophilised peptide vials ship with stability documentation.

Storage & Handling

Store at recommended temperature (15–25°C; peptides and HGH at 2–8°C after reconstitution). Protect from light and moisture. Keep out of reach of children. For research and educational purposes only.