SummerPeptides
Back to the pen range
White pre-filled Semaglutide 12mg injection pen with cobalt base ring on warm creamCold-chain dispatch
Semaglutide 4mgTirzepatide 30mgRetatrutide 30mg
GLP-1 injection pen · ready-mixed

Semaglutide 12mg

Pre-filled pen · 99% purity

The same Semaglutide pen at 12 mg — for protocols already past the starting titration. Three times the compound in one pen means fewer reorders and fewer cold-chain deliveries, at the same clicks-and-go simplicity.

What it does

  • GLP-1 receptor agonist at maintenance strength
  • 12 mg in one pen — fewer reorders, fewer cold-chain shipments
  • Ready-mixed and pre-filled
  • Dose window confirms every click before you press
  • 99% purity, batch-tested — COA available per batch

How it's delivered

12 mg pre-filled pen. Weekly subcutaneous dosing. Ships cold-chain in an insulated pack.

Price on request
12 mg pre-filled pen · starter box included
Enquire about Semaglutide 12mg

Pricing is confirmed directly with our team.

Open white SummerPeptides starter box holding a Semaglutide 12mg pen and four needle tips
The starter box

Everything for Semaglutide 12mg,
boxed and ready.

Each pen ships in its own box, printed for that molecule and that strength — so what arrives is unmistakably the thing you ordered. Inside: the pen in a foam cradle, needles, swabs and a dosing card.

  • 1× Semaglutide 12mg pre-filled pen
  • 4× LiteTouch pen needles
  • 1× alcohol swab set
  • Printed dosing and storage card

Shipped cold-chain in an insulated pack with The Courier Guy, tracked door to door.

The rest of the pen range

White pre-filled Semaglutide 4mg injection pen with cobalt base ring on warm cream

Semaglutide 4mg

The starting strength. Ready-mixed, pre-filled, nothing to prepare.

White pre-filled Tirzepatide 30mg injection pen with cobalt base ring on warm cream

Tirzepatide 30mg

Dual-agonist. A full protocol in a single pen.

White pre-filled Retatrutide 30mg injection pen with cobalt base ring on warm cream

Retatrutide 30mg

Triple-agonist. The newest molecule in the category.

Shop the heroes Start a Pair