Labor Day 2026 Peptide Vendor Sales Roundup
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Southern Aminos Labor Day Weekend Sale — 50% Off Site-Wide + Our Code Stacks (Sept 5–7 Only)Southern Aminos just rolled out their biggest promo since the Anniversary Sale, and it's a three-day window: Saturday, September 5 through Monday, September 7.
The Deal
50% OFF SITE-WIDE — applied across the whole catalog.
And it stacks. Southern Aminos is explicitly allowing 15% affiliate codes on top of the 50%, plus their tiered pricing on larger orders. Their words: "Stack. Save. Repeat."
️ 50% off site-wide
15% off with PeptideCritic code peptidecritic
STACKS- Tiered pricing for bigger carts
https://peptidecritic.com/go/southern-aminos
Daily Giveaways — 9 Winners Total
They're also running giveaways all weekend: 3 winners every day (Saturday, Sunday, Monday). Every winner gets a Mix & Match 10-Vial Kit in a custom Southern Aminos vial cover box — you pick the 10-vial mix, they pack it in the display box. Check their site or socials for entry details.
Dates
September 5–7 only. Ends Monday night (Labor Day). No word on an extension, so don't count on one.
Southern Aminos was listed as "not running a Labor Day sale" in our [Labor Day roundup thread] — that was accurate as of Wednesday; this dropped after. Roundup will be updated.
All products are sold for research use only. Discounts as stated in vendor promo materials; verify at checkout.
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Labor Day 2026 Peptide Vendor Sales Roundup
Labor Day is Monday, September 7. Here's every sale we've seen come through from vendors so far, sorted by discount depth. Most run through Tuesday, September 8. We'll update this thread as more come in — post below if you spot one we missed.
Where the PeptideCritic coupon stacks on top of the sale, it's marked
STACKS. Use the link, then enter the code at checkout. Full list is always on the Coupon Codes page.
Up to 65%+ Off
Southern Aminos Labor Day Weekend Sale — 50% Off Site-Wide + Our Code Stacks (Sept 5–7 Only)Southern Aminos just rolled out their biggest promo since the Anniversary Sale, and it's a three-day window: Saturday, September 5 through Monday, September 7.
The Deal
50% OFF SITE-WIDE — applied across the whole catalog.
And it stacks. Southern Aminos is explicitly allowing 15% affiliate codes on top of the 50%, plus their tiered pricing on larger orders. Their words: "Stack. Save. Repeat."
~50% off stack
- Live now through Monday, Sept 7, 11:59 PM EST
- https://peptidecritic.com/go/nura-peptide
Flawless Compounds
STACKS — Tiered sitewide discount, applied automatically based on cart subtotal:- $0–$299: 35% off / $300–$399: 45% off / $400+: 50% off
- PeptideCritic code
peptidecritic(15%) stacks on top of the tier - Runs through Labor Day weekend
- https://peptidecritic.com/go/flawless-compounds
Glow Aminos
STACKS — Same tiers as Flawless (sister company):- $0–$299: 35% off / $300–$399: 45% off / $400+: 50% off, automatic
- PeptideCritic code
peptidecritic(15%) stacks on top - https://peptidecritic.com/go/glow-aminos
Hydro Research — 50% off all GLP-1s, 25% off everything else. No code needed. Pricing holds "while the stock does" — several items flagged as moving fast, no hard end date.
40% Off
EZ Peptides
STACKS — 30% off every peptide, automatic. Pay with crypto for an extra 10% (40%), also automatic. Bacteriostatic water excluded.- PeptideCritic code
PEPTIDECRI10(10%) stacks on the sale price - Sept 2, 8:00 AM CT – Sept 8, 11:59 PM CT
- https://peptidecritic.com/go/ez-peptides
Ameano Peptides (AMP)
STACKS — 30% off the full catalog (peptides + cosmetics), automatic. Extra 10% with crypto (40%). Bacteriostatic water excluded.- PeptideCritic code
peptidecritic(10%) stacks on top - Sept 2, 8:00 AM CT – Sept 8, 11:59 PM CT
- https://peptidecritic.com/go/ameano-peptides
Genpeptide — 40% off all peptides with code
LABOR40. Excludes Custom Kits and Regular Kit sales. Expires September 8. (Our 10% code is a separate coupon — vendor hasn't confirmed stacking, so useLABOR40for the bigger discount.)35% Off
Mile High Compounds
OUR CODE IS THE SALE — The PeptideCritic code is boosted from 10% to 35% off the full catalog (5% more than the standard site discount) for the promo, including the new research sprays (Semax, Selank, Semax/Selank/Pinealon blend, BPC/TB blend).- Code:
PeptideCritic - Not live until Sept 3 at 9:00 AM MST; runs through Sept 9, 11:59 PM MST
- https://peptidecritic.com/go/mile-high-compounds
25% Off
Paramount Peptides — 25% off sitewide with code
LABORDAY25(expires Sept 7), plus a free 10mL reconstitution solution on orders $500+. Our 5% code doesn't beat this — useLABORDAY25.- https://peptidecritic.com/go/paramount-peptides
Nura Peptide — 30% off + Buy 3 Get 1 Free sitewide, and our code stacks on both. - Sale code:
labor30(30%) + PeptideCritic code:peptidecritic(20%) →
20% Off
Voltera Sciences — August end-of-month promo extended through Labor Day week under code
September20(auto-applied). Our codepeptidecriticis also 20%. They've hinted something extra may drop for the weekend — will update if so.
Non-peptide, but useful
Medex Supply — 60% off disposable nitrile gloves and other protection essentials for Labor Day.
All products are sold for research use only. Discounts and dates are as stated in vendor communications received Aug 28 – Sep 2; verify at checkout.
Labor Day 2026 Peptide Vendor Sales RoundupLabor Day is Monday, September 7. Here's every sale we've seen come through from vendors so far, sorted by discount depth. Most run through Tuesday, September 8. We'll update this thread as more come in — post below if you spot one we missed.
Where the PeptideCritic coupon stacks on top of the sale, it's marked
STACKS. Use the link, then enter the code at checkout. Full list is always on the Coupon Codes page.
Up to 65%+ Off
Southern Aminos Labor Day Weekend Sale — 50% Off Site-Wide + Our Code Stacks (Sept 5–7 Only)Southern Aminos just rolled out their biggest promo since the Anniversary Sale, and it's a three-day window: Saturday, September 5 through Monday, September 7.
The Deal
50% OFF SITE-WIDE — applied across the whole catalog.
And it stacks. Southern Aminos is explicitly allowing 15% affiliate codes on top of the 50%, plus their tiered pricing on larger orders. Their words: "Stack. Save. Repeat."
~50% off stack
- Live now through Monday, Sept 7, 11:59 PM EST
- https://peptidecritic.com/go/nura-peptide
Flawless Compounds
STACKS — Tiered sitewide discount, applied automatically based on cart subtotal:- $0–$299: 35% off / $300–$399: 45% off / $400+: 50% off
- PeptideCritic code
peptidecritic(15%) stacks on top of the tier - Runs through Labor Day weekend
- https://peptidecritic.com/go/flawless-compounds
Glow Aminos
STACKS — Same tiers as Flawless (sister company):- $0–$299: 35% off / $300–$399: 45% off / $400+: 50% off, automatic
- PeptideCritic code
peptidecritic(15%) stacks on top - https://peptidecritic.com/go/glow-aminos
Hydro Research — 50% off all GLP-1s, 25% off everything else. No code needed. Pricing holds "while the stock does" — several items flagged as moving fast, no hard end date.
40% Off
EZ Peptides
STACKS — 30% off every peptide, automatic. Pay with crypto for an extra 10% (40%), also automatic. Bacteriostatic water excluded.- PeptideCritic code
PEPTIDECRI10(10%) stacks on the sale price - Sept 2, 8:00 AM CT – Sept 8, 11:59 PM CT
- https://peptidecritic.com/go/ez-peptides
Ameano Peptides (AMP)
STACKS — 30% off the full catalog (peptides + cosmetics), automatic. Extra 10% with crypto (40%). Bacteriostatic water excluded.- PeptideCritic code
peptidecritic(10%) stacks on top - Sept 2, 8:00 AM CT – Sept 8, 11:59 PM CT
- https://peptidecritic.com/go/ameano-peptides
Genpeptide — 40% off all peptides with code
LABOR40. Excludes Custom Kits and Regular Kit sales. Expires September 8. (Our 10% code is a separate coupon — vendor hasn't confirmed stacking, so useLABOR40for the bigger discount.)35% Off
Mile High Compounds
OUR CODE IS THE SALE — The PeptideCritic code is boosted from 10% to 35% off the full catalog (5% more than the standard site discount) for the promo, including the new research sprays (Semax, Selank, Semax/Selank/Pinealon blend, BPC/TB blend).- Code:
PeptideCritic - Not live until Sept 3 at 9:00 AM MST; runs through Sept 9, 11:59 PM MST
- https://peptidecritic.com/go/mile-high-compounds
25% Off
Paramount Peptides — 25% off sitewide with code
LABORDAY25(expires Sept 7), plus a free 10mL reconstitution solution on orders $500+. Our 5% code doesn't beat this — useLABORDAY25.- https://peptidecritic.com/go/paramount-peptides
Nura Peptide — 30% off + Buy 3 Get 1 Free sitewide, and our code stacks on both. - Sale code:
labor30(30%) + PeptideCritic code:peptidecritic(20%) →
20% Off
Voltera Sciences — August end-of-month promo extended through Labor Day week under code
September20(auto-applied). Our codepeptidecriticis also 20%. They've hinted something extra may drop for the weekend — will update if so.
Non-peptide, but useful
Medex Supply — 60% off disposable nitrile gloves and other protection essentials for Labor Day.
All products are sold for research use only. Discounts and dates are as stated in vendor communications received Aug 28 – Sep 2; verify at checkout.
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@eleanor nailed it. They mark it up and then offer these big discounts. It's very disappointing. I am sure they think we are idiots, since every drop, sale, and scarcity tactic works.
@eleanor nailed it. They mark it up and then offer these big discounts. It's very disappointing. I am sure they think we are idiots, since every drop, sale, and scarcity tactic works.
You know what, I think more people are aware of what vendors are doing than we think. If they're connoisseurs like many here, we can see it. The Newbies will catch on when green gets slim.
These vendors are going to have to produce Nexaph-type deals from here on out because money is tighter than the vendor surmises.
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