Aromasin + Caberlin + Proviron + HCG + Nolvadex + Clomid — Intermediate On-Cycle & PCT Stack

Aromasin + Caberlin + Proviron + HCG + Nolvadex + Clomid — Intermediate On-Cycle & PCT Stack

Intermediate cycles that include Nandrolone — Deca 300, Cut Long 300, or any blend containing 19-nor compounds — require a different level of support than a straightforward testosterone cycle. Nandrolone raises prolactin in addition to estrogen, which means an aromatase inhibitor alone isn't sufficient. This stack addresses both hormone systems on-cycle, uses HCG to preserve testicular function throughout, and deploys a two-SERM PCT protocol to drive complete HPTA recovery after compounds with stronger suppressive profiles have cleared.

Why Aromasin Instead of Arimidex

Aromasin (Exemestane) is a suicidal aromatase inhibitor — it permanently binds to and destroys the aromatase enzyme rather than temporarily blocking it. The practical consequence is that there's no estrogen rebound when Aromasin is discontinued, which is exactly the behavior needed when transitioning into PCT. Arimidex is effective for simpler cycles, but on a multi-compound cycle where estrogen management needs to be clean at the boundaries, Aromasin's irreversible mechanism makes the cycle-to-PCT transition smoother. Standard dose is 12.5 mg every other day — half a 25 mg tab.

Why Caberlin — Prolactin Control on Nandrolone Cycles

Nandrolone (Deca 300, and the nandrolone component in Cut Long 300) stimulates prolactin secretion. Elevated prolactin on-cycle causes sexual dysfunction, reduced libido, and in some users leads to lactation-related side effects. These symptoms are often misattributed to low testosterone or high estrogen, but they don't resolve with an aromatase inhibitor because their origin is prolactin, not estrogen. Cabergoline (Caberlin 0.5 mg) is a dopamine agonist that directly suppresses prolactin production. The on-cycle dose is 0.5 mg twice per week — one tab on, say, Monday and Thursday. At this dose over a 12-week cycle, 24 tabs are used from one pack.

Why Proviron — Free Testosterone and Libido

Proviron (Mesterolone) binds to sex hormone-binding globulin (SHBG) — the protein that renders testosterone inactive by binding it in the bloodstream. By occupying SHBG, Proviron increases the proportion of free, active testosterone, improving the effective output of the cycle's testosterone base. It also provides mild androgenic activity that maintains libido throughout the cycle. Dose is 25 mg per day — one tab. Over 12 weeks, 84 tabs are used from one pack of 100.

Why HCG — Preventing Testicular Atrophy

Every anabolic cycle suppresses the LH signal that normally stimulates the testes to produce testosterone. Over a 12-week cycle, the testes receive no LH, which leads to progressive atrophy. The longer this continues, the harder and slower post-cycle recovery becomes. HCG mimics LH and keeps the testes functional throughout the cycle, so that when PCT begins, recovery starts from maintained testicular tissue rather than a suppressed and atrophied baseline.

Use HCG during the last 5 weeks of the cycle: 500 IU twice per week. One kit of HCG 5000 IU provides exactly the amount needed — 5000 IU for a clean, zero-waste protocol. Stop HCG 3 days before beginning PCT.

Reconstitution: Draw 2 ml of Bacteriostatic Water from the included vial and inject it slowly into the HCG powder vial. Swirl gently — do not shake. The solution is ready when the powder is fully dissolved.

Storage after mixing: Refrigerate at 2–8°C immediately after reconstitution. Do not freeze. The reconstituted solution remains stable for 28–35 days. The 5-week protocol finishes the vial within this window. Reconstitute on the day of the first injection. The Bacteriostatic Water vial (10 ml) provides 2 ml for the HCG — the remaining 8 ml can be kept refrigerated for future use.

What Is Included

• Aromasin — Exemestane 25 mg/tab, 100 tabs × 1
• Caberlin 0.5 mg — Cabergoline 0.5 mg/tab × 1 pack
• Proviron — Mesterolone 25 mg/tab, 100 tabs × 1
• HCG 5000 IU — Human Chorionic Gonadotropin × 1 kit
• Bacteriostatic Water — 10 ml vial × 1
• Nolvadex — Tamoxifen Citrate 20 mg/tab, 100 tabs × 1
• Clomid — Clomiphene Citrate 50 mg/tab, 100 tabs × 1

Full 16-Week Protocol

Phase	Aromasin	Caberlin	Proviron	HCG	Nolvadex	Clomid
Weeks 1–7 (on-cycle)	12.5 mg EOD	0.5 mg 2×/wk	25 mg/day	—	—	—
Weeks 8–12 (on-cycle + HCG)	12.5 mg EOD	0.5 mg 2×/wk	25 mg/day	500 IU 2×/wk	—	—
PCT week 1–2	—	—	—	—	40 mg/day	100 mg/day
PCT week 3–4	—	—	—	—	20 mg/day	50 mg/day

Start PCT: 14 days after the last Sustanon or Deca 300 injection. Stop Aromasin, Caberlin, and Proviron on the last day of the cycle. Stop HCG 3 days before PCT begins.

Why Both Nolvadex and Clomid for PCT

Both are SERMs but they act on different points of the hormonal axis. Nolvadex (Tamoxifen) is more effective at stimulating LH — the signal that tells the testes to produce testosterone. Clomid (Clomiphene) is more effective at stimulating FSH, which drives spermatogenesis and overall testicular recovery. Nandrolone suppresses FSH particularly aggressively. Running only Nolvadex after a Nandrolone cycle addresses LH recovery but leaves FSH restoration incomplete, extending the timeline before natural hormone levels are fully rebuilt. Clomid closes that gap.

Usage Summary

• Aromasin: ~21 tabs over 12 weeks at 12.5 mg EOD — 79 tabs remaining
• Caberlin: 24 tabs over 12 weeks at 0.5 mg 2×/week
• Proviron: 84 tabs over 12 weeks at 25 mg/day — 16 tabs remaining
• HCG: 1 kit × 5000 IU — fully used over 5 weeks at 500 IU 2×/week, zero waste
• Bacteriostatic Water: 2 ml used for HCG reconstitution — 8 ml remaining in vial
• Nolvadex: 84 tabs over 4-week PCT — 16 tabs remaining
• Clomid: ~32 tabs over 4-week PCT — 68 tabs remaining

This stack pairs with the Intermediate Bulking Stack (Sustanon 270 + Deca 300 + Dianabol) and the Intermediate Cutting Stack (Cut Long 300 + Winstrol 50). For cycles without Nandrolone or Trenbolone, the Beginner On-Cycle & PCT Stack is sufficient. For Trenbolone-heavy cycles, use the Advanced stack.