Halloween Sales are here and more on the way!

Randy

We’ve pulled together the Halloween sales and other vendor promotions announced to Peptide Critic, including what’s running now and what’s scheduled for Halloween weekend.

Last checked: October 26, 2026.

Halloween falls on Saturday this year. Most of these sales finish October 31, while Studz and Hydro have confirmed offers extending into Sunday, November 1. Exact deadlines are listed in Pacific time where the vendor provided enough information to convert them.

Halloween weekend sales

Studz Aminos — October 30–November 1

Use code SPOOKY for tiered discounts:

15% off orders under $200.
20% off orders from $200–$549.
25% off orders from $550–$1,999.
30% off orders of $2,000 or more.

The sale runs Friday through Sunday. The flyer doesn’t specify an exact ending hour or additional stacking terms.

Mile High Compounds — Buy 2, get 1 free

Running October 26–31.

Mix and match three eligible vials or capsules, and the cheapest item is free. The sale applies automatically at checkout. An eligible 10% affiliate code can also stack.

Updated exclusions and terms:

MHC-3 RT is excluded in every size.
Solvents and sprays are excluded.
Bulk pricing does not apply to sale items.
The first-order offer is paused during this promotion.
Both new and returning customers can participate.

Ends Saturday, October 31, at 10:59 p.m. Pacific.

October 27–31 is the corrected sale window. No exact ending hour was included in the announcement.

Voltera Sciences — Sitewide sale with additional discounts

Running October 26–31:

35% off sitewide automatically.
An additional 10% with an eligible partner code.
An additional 5% when paying with Zelle, Venmo or Cash App.

Bacteriostatic water is excluded.

Voltera advertises this as “up to 50%,” but the final percentage depends on how checkout applies the discounts. Check the actual total rather than adding the percentages together.

Crush Research — Halloween Haul and Pack Attack

Running through October 31.

Mix-and-match pack discounts are increased to:

20% off a three-pack.
25% off a five-pack.
30% off a ten-pack.

Code CRUSHMAIL takes another 10% off the discounted pack price.

The vendor is also advertising separate product specials. Its Triple Agonist 20 mg ten-pack was listed at $233.10 with CRUSHMAIL, or $221.45 with the additional Zelle/crypto discount, subject to availability.

The stated deadline is October 31 at “midnight Mountain time.”

NexPept — Halloween sale for Canadian customers

Use HALLOWEEN for 15% off all products through October 31.

The vendor’s flyer advertises these combined discounts when the code is used with Mix & Match:

Three vials: 20% off.
Five vials: 25% off.
Ten vials: 35% off.

NexPept ships within Canada only.

ION Peptide — Anniversary finale, October 26–31

ION is advertising up to 45% off sitewide, plus three flash-sale items each day.

Flash offers have limited quantities and a limit of one per customer, per item.

The sale graphic confirms the October 26–31 dates but does not give a coupon code or explain the full “up to 45%” calculation. Individual flash prices can change as offers rotate or sell out.

Running now, but ending before the weekend

Instant Peptides — BOGO on October 26 only

Buy one, get one free on the advertised GLP-1 SM, GLP-2 TRZ, GLP-3 RT, Cagrilintide and RT/CAG products.

Add two of the same eligible product and size to the cart. The second is free automatically; no code is needed.

Ends Monday, October 26, at 8:59 p.m. Pacific.

Instant says more daily Halloween offers are coming this week, but the complete schedule has not been announced.

Upcoming announcement to watch

Southern Aminos has announced a Halloween event beginning October 29, but has not revealed the actual offer yet.

It also runs random flash drops. Example prices in its emails are not necessarily live offers or scheduled to return, so check the current listing and timer.

Updates and corrections

These details come from vendor emails and promotional flyers received by Peptide Critic. Stock, eligibility and checkout terms can change.

If a code stops working, a vendor extends a sale, or you find a newly announced offer, reply below with the vendor name, code, expiration date and a link to the announcement. Vendors are welcome to clarify their terms too.

mrjoshua44

I love this place!!

84.brig_tailor

Anyone even seen one of the ion peptide flash deals yet? I can’t even tell where it would show on their site.

BeeKind

@84.brig_tailor Flash deals are usually only on there for a few minutes so you have to be on their page and refresh it randomly throughout the day to catch one. Same thing for Southern Aminos, I always miss them.

84.brig_tailor

@BeeKind said:

@84.brig_tailor Flash deals are usually only on there for a few minutes so you have to be on their page and refresh it randomly throughout the day to catch one. Same thing for Southern Aminos, I always miss them.

Bummer. I am very busy this week at work. Probably won’t be able to catch one.

pensar

Been going hard on that crush sale. Im going to need to expand my freezer storage.

SwollStreetBets

@84.brig_tailor Yeah that's frustrating, work frequently takes me away from my personal phone for hours at a time so the whole "drop" thing rarely works for me.

Genpeptide

Genpeptide (Https://www.genpeptide.com) Is having a Halloween Sale October 26 - November 1.

40% Off on all peptides

You can use the coupon BOO40
Or you can use PeptideCritic40 (Gives @randy ) Commmission

Randy

Updated Saturday, October 31, 2026.

Here’s the latest Halloween weekend roundup from vendor announcements. Several offers changed overnight, and a few now continue into Sunday or next week.

The biggest updates: Instant has a new buy-2-get-3-free offer for Saturday, Southern Aminos increased its discount, Voltera extended through Sunday night, and OmegAmino added a qualifying-order gift bundle.

Times below use the timezone supplied by each vendor. Where a vendor did not provide a timezone or exact cutoff, that is noted. Check the final cart total and eligible items before placing an order.

Ending Saturday, October 31

Instant Peptides — new Saturday offer

Buy 2, get 3 free on eligible research peptide vials.

Add all five eligible vials to your cart.
Mix products and strengths, or choose matching vials.
The three lowest-priced eligible vials become free automatically.
No coupon is required for the promotion.

There are separate buy-one-get-one-free offers on lab supplies, vial cases, capsules, raw powders, and sprays. For those offers, add two of the same item.

Ends tonight at midnight Eastern.

Our code PEPTIDECRITIC takes 10% off, but the vendor has not confirmed it stacks with today’s promotion. Check the cart before counting on that additional discount.

Alpha Peptides — tiered Halloween discount

Use BOO:

$150+ cart: 15% off.
$250+ cart: 20% off.
$350+ cart: 25% off.

One code per order. Ends October 31 at 11:59 p.m. Eastern.

Synthesis Peptides

Buy one, get one free with 2x1.

Add two products and apply the code. Cannot combine with other promotions or discounts.

Advertised through October 31; exact closing time and timezone were not supplied.

Mile High Compounds

Buy two, get one free on eligible vials and capsules, with mix-and-match allowed. The lowest-priced eligible item becomes free automatically.

Our code PeptideCritic adds another 10%.

All MHC-3 RT sizes, solvents, and sprays are excluded. Bulk pricing does not apply to sale items, and the first-order promotion is paused.

Ends October 31 at 11:59 p.m. Mountain Daylight Time.

Molecular Solutions Peptides

Use HAUNT20 for the corrected spending tiers:

$250+: 10% off.
$350+: 15% off.
$450+: 20% off.

Login is required to view products.

Ends October 31 at 11:59 p.m.; timezone not specified.

Forge Performance Co.

10% off compounds automatically. Our code peptidecritic stacks, and Zelle payments receive an additional 3%.

Card payments are currently paused; the vendor lists Zelle and Cash App as available.

Ends October 31 at 11:59 p.m. Central.

Paramount Peptides

20% off sitewide with SPOOKY20, on top of the vendor’s reduced base prices.

Ends October 31 at 11:59 p.m.; timezone not specified.

IRON Peptides

31% off sitewide with HALLOWEEN. No minimum spend.

The latest email confirms the offer ends Saturday at midnight. Timezone not specified.

Simms Research

30% off sitewide with TREATS30.

Cannot combine with another coupon. Free FedEx 2-Day shipping is advertised on orders of $200 or more after the discount.

Ends October 31 at 11:59 p.m. Pacific.

Crush Research

Mix-and-match pack discounts:

Three-pack: 20% off.
Five-pack: 25% off.
Ten-pack: 30% off.

Use CRUSHMAIL for an additional 10%.

Ends October 31 at midnight Mountain time. Product availability varies.

NexPept — Canada only

15% off with HALLOWEEN.

The vendor advertises combined savings with mix-and-match quantities:

Three vials: 20%.
Five vials: 25%.
Ten vials: 35%.

Canada-only shipping. Ends Halloween night at midnight; timezone not specified.

ION Peptide

Anniversary promotion advertising up to 45% off sitewide through October 31, plus rotating flash deals.

Flash offers are limited to one unit per customer per flash-sale item and are subject to availability. Check the current selections; Friday’s featured items should not be assumed to carry over into Saturday.

Ends early Sunday, November 1

IDUN Peptides — buy two matching packs, get one free

Buy two matching eligible packs and receive a third identical pack free.

Add two paid packs of the same product, mass, and pack size. The free pack is added automatically. Individual vials, five-vial half kits, and ten-vial kits qualify on eligible products.

The expanded Halloween selection includes KLOW 80 mg, IDN-31 50 mg, MOTS-c 10 mg, IDN-Tesa 10 mg, and IDN-TZ 30 mg.

No additional coupon discounts. Store credit is accepted. Free shipping is advertised on every order.

Ends November 1 at 4 a.m. Eastern.

️ Continuing through Sunday, November 1

Voltera Sciences — extended

The sale has been extended through Sunday, November 1, at 11:59 p.m. Pacific.

35% off automatically.
Additional 10% with our code peptidecritic.
Additional 5% for eligible Zelle, Venmo, or Cash App payments.

Bacteriostatic water is excluded.

BioEdge Research Labs

Buy two, get one free, plus an additional 15% with BOGO15 or our code peptidecritic.

Add three eligible items to your cart. The lowest-priced item becomes free automatically, then apply the eligible discount code.

Peptides, blends, bioregulators, and capsules qualify. Bac Water and AA Water are excluded.

Ends November 1 at 11:59 p.m. Eastern.

Genpeptide

40% off all peptides with PEPTIDECRITIC40.

Advertised through November 1. Exact closing time and timezone were not supplied.

Nura Peptide

40% off sitewide automatically, plus double loyalty points.

Coupon discounts cannot stack with the sale.

Ends November 1 at 11:59 p.m. Eastern Standard Time.

BioLongevity Labs

40% off most products automatically, with no code or minimum spend.

Klotho, FLGR242, Cell Factors, and Apileen13XR receive 20% off instead.

Runs through Sunday night, November 1. The vendor describes the cutoff as midnight Pacific Standard Time.

Puratek

31% off automatically.

Orders of $250 or more after the discount qualify for a free 30 mL BAC water.

Ends November 1 at 11:59 p.m.; timezone not specified.

Studz

Use SPOOKY for the Halloween spending tiers:

Below $200: 15% off.
$200+: 20% off.
$550+: 25% off.
$2,000+: 30% off.

The Halloween discount does not stack with our regular 10% code peptidecritic.

Advertised October 30–November 1. Exact closing time and timezone were not supplied.

️ Continuing into next week

Alpha Peptides — separate GLP-3 RT offer

15% off GLP-3 RT with EARLY15.

The creative says the offer ends Tuesday, November 3, at midnight; timezone not specified. This is a separate offer from the Halloween BOO promotion.

Atomik Labz

Peptide 3(R)/RETA is buy one, get two free. Add one eligible item and the promotion applies automatically.

COSTUME gives 30% off other eligible products. It does not apply to B1G2 or BOGO products.

Peptides 1(S), 2(T), TR, and CS remain BOGO. The vendor also advertises an additional automatic 10% crypto-payment discount.

Ends Thursday, November 5, at 3 p.m. Eastern.

Glow Aminos and Flawless Compounds

Both vendors advertise:

35% off sitewide.
Additional 15% with our code peptidecritic.
Additional 5% for Zelle.
Triple loyalty points.

The offer runs October 28–November 6. Exact closing time and timezone were not supplied. Loyalty points are future rewards, separate from the checkout discounts.

Additional current announcements with less precise deadlines

Southern Aminos — increased Halloween offer

The newest announcement replaces the earlier Haunted Vault details with 45% off sitewide plus 15% with our code peptidecritic.

The email describes a 48-hour promotion beginning October 30 and ending “November 1 at midnight,” without a timezone. Because that wording does not clearly establish Sunday-night availability, check this offer today and confirm the live cutoff.

Labsourced

Buy one, get one free on eligible promotional products, plus an additional 10% with BOO10.

The vendor also advertises volume discounts:

Three bottles: 3%.
Five bottles: 5%.
Ten bottles: 10%.

The vendor says the BOGO, coupon, and volume offers stack. Today’s Halloween email reconfirms the promotion, but does not provide an exact expiration.