Proper Labs Bulking Stack - Advanced

This stack combines Sustanon (a multi-ester testosterone blend), Boldenone Undecylenate (Equipoise/EQ), Dianabol tablets, and Arimidex (anastrozole). Sustanon and Boldenone are the two injectable anabolics that carry the twelve-week cycle, Dianabol is an oral used only for the first four to six weeks to bring on early strength and size, and Arimidex is an aromatase inhibitor run alongside them to keep estrogen in check.

As a guide only, not medical advice: Sustanon is commonly dosed at 500-750 mg per week and Boldenone at 400-600 mg per week for weeks one to twelve, both split into two injections a week. Dianabol is added on top at 20 mg a day for the first four weeks, sometimes stepped up to 30-40 mg a day for weeks five and six for those tolerating it well, then dropped once the injectables are fully up to speed. Arimidex is taken at a low dose, typically 0.25-0.5 mg every other day, adjusted against bloodwork or visible estrogenic side effects rather than a fixed schedule.

Sustanon and Boldenone are both injectables that take a couple of weeks to build meaningful blood levels, so early in the cycle strength and fullness gains can feel slow to arrive. Dianabol is a fast-acting oral that kicks in within days, giving noticeable pumps and strength while the injectables accumulate, then it is stopped so the injectable esters carry the rest of the cycle on their own.

Sustanon and Dianabol both aromatise, so estrogenic effects like water retention, bloat, and gyno risk are the main concern, which is exactly what the Arimidex is included to manage. Dianabol is a 17-alpha-alkylated oral and carries liver stress, so cycle length is kept short and liver support plus bloodwork are worth planning for. All three anabolic compounds suppress natural testosterone production, so a proper post-cycle therapy plan should be arranged before starting, and anyone with existing blood pressure, lipid, liver, or cardiovascular concerns should get baseline bloods done first.

Sustanon on its own delivers fast, strength-and-size-focused gains driven partly by water and glycogen along with muscle tissue. Boldenone builds more slowly over the full twelve weeks but adds leaner, more keepable muscle with noticeably better vascularity and endurance, and it carries a lower estrogenic load than testosterone alone. Running them together aims to get the quick early response from Sustanon and Dianabol while Boldenone fills in with quality mass that holds up better once the cycle ends.

Every item in this stack is genuine Proper Labs product with a verification check-code printed on the box so you can confirm authenticity before use. Orders ship from the UK on Royal Mail Tracked 24 in plain, discreet packaging with no branding, and most UK orders arrive within one to two working days. Get your order in before noon on a working day and it goes out same-day.