Pharmaqo SARMs Advanced Hardness Stack

This Pharmaqo Labs stack pairs YK-11, a myostatin-inhibiting SARM, with SR-9009 (Stenabolic), a Rev-ErbA agonist that ramps up mitochondrial activity. YK-11 is included to build hard, dense muscle, while SR-9009 is there to push fat burning and endurance. Together they are aimed at a lean, grainy look rather than raw bulk.

It is built for lifters who already have some size on them and want a harder, more conditioned finish, so it suits an advanced recomp or cutting phase more than a first cycle. Because YK-11 is a stronger compound than milder SARMs, it is not the best starting point for someone brand new to SARMs. It works best alongside a calorie deficit or tight maintenance diet and a structured training plan.

As a guide only, not medical advice, YK-11 is commonly run at 5 mg twice daily for the first six weeks, stepping up to 5 mg three times daily for weeks seven and eight if it is well tolerated. SR-9009 has a short half-life, so it is usually split across three to four doses a day, roughly 10 mg per dose, across the full eight weeks to keep blood levels steady. Splitting SR-9009 through the day matters more than with most compounds because levels drop quickly between doses.

SR-9009 does not suppress natural testosterone, but YK-11 can cause mild to moderate suppression in some users, especially at the higher end of the dosing range. Many users run a basic PCT such as a natural test support supplement or Nolvadex after finishing, and bloodwork before and after the cycle is the only reliable way to know where your hormones stand. If you are unsure, speak with a doctor before and after running any SARM stack.

YK-11 has been linked to joint dryness, mild lethargy, and in some users a drop in natural testosterone output over longer runs. SR-9009 is generally well tolerated but poor oral bioavailability means results vary a lot between users, and some report an initial energy crash before the metabolic effects kick in. Neither compound has long-term human safety data, so treat any side effects as a signal to stop and reassess, not something to push through.

Every box we sell is authentic Pharmaqo Labs product with its own verification check-code so you can confirm it is genuine on arrival. Orders go out from the UK on Royal Mail Tracked 24 in plain, unmarked packaging, with same-day dispatch if you pay before midday on a working day. Most customers across the UK see their stack land within one to two working days.