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99% HPLC Purity
Triple-Tested Every Batch
Lyophilized Domestically
Same-Day Dispatch
30 Day Money-Back Guarantee
Free Shipping $150
99% HPLC Purity
Triple-Tested Every Batch
Lyophilized Domestically
Same-Day Dispatch
30 Day Money-Back Guarantee
Free Shipping $150
Loyalty membership

Membership that
pays you back the same day.

Join Synthro VIP for $44.88 a month and the full amount lands back in your account as store credit — same day. Keep the extra 20% off, free express shipping, and a monthly reconstitution water on every order after that.

Join VIP
How Billing Works
  • Cancel anytime
  • Credit auto-applies at checkout
  • No long-term contract

VIP

Synthro VIP Membership

$44.88

/ month

↺ $44.88 store credit back same day

Net membership cost: $0 — you're just unlocking the perks below

Billed monthly to your card on file. Cancel anytime from your account.

✨ Synthro VIP — $44.88/month, refunded to your account as store credit the same day

Member benefits

What's in it every month

Store credit

Your full membership fee comes back as credit, usable on any order.

$44.88 / mo
Extra VIP discount

An additional 20% off selected products, on top of standing pack pricing.

20% off
Free express shipping

Every order ships express at no extra cost for as long as you're a member.

Every order
Reconstitution water

One free 10ml bacteriostatic water vial added to your account each month.

1× / mo · 10ml
How it works

Three steps, then it runs itself

1
Join for $44.88
Set up your membership below — card on file, billed monthly.
2
Credit lands same day
$44.88 in store credit appears in your account balance immediately.
3
Shop with your perks
Credit, 20% off, express shipping, and your water vial apply automatically.
Monthly giveaways

Every billing cycle, five members win

Every active VIP membership is one automatic entry into that month's drawing — no purchase beyond your membership, no extra steps. Winners are announced here on the 1st.

  • September 2026 cycle
  • 5 winners drawn
  • $2,140 in prizes
  • Next drawing Oct 1, 2026
★

JM

Jordan M.

Boston, MA

12 months free NAD+

$959.88 value

MT

Morgan T.

Austin, TX

$250 store credit
2

PR

Priya R.

London, UK

Full GLP-1 + GLP-2 stack
3

DS

Diego S.

Sydney, AU

6 months free VIP
4

CL

Casey L.

Toronto, CA

Lab gear kit
5

Winners are drawn at random from active VIP memberships in good standing at the close of each billing cycle. First name and last initial shown with each winner's permission. Void where prohibited; see membership terms for full giveaway rules.

Join Synthro VIP

Set up your membership

Takes about a minute. Your first $44.88 in store credit is added the same day your membership starts.

Due today

Renews monthly · cancel anytime

$44.88

VIP FAQ

Billing & perks, explained

The full $44.88 membership fee is added back to your account as store credit the same day you're billed, so it's ready to use on your next order.

Yes. Cancel from your account before your next billing date and you won't be charged again — no minimum commitment.

Checkout always applies your single lowest price automatically, the same as sitewide promos. The VIP discount is guaranteed on selected products even outside of sale periods.

Unused credit stays on your account balance and carries forward to your next order — it isn't lost at the end of the month.