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(over 10 years received a 10, 6-9 received a 9 and 2-5 received a 5. There were about 5 large peptide companies that I did not include in this review because I could not verify that they were a USA Peptides Company and, in my opinion, I don’t trust companies that won’t respond to you when attempting to verify their legitimacy.  I also did not include companies that scored less than an 80/100 as the goal of this review is to help you find trusted sources online to buy peptides and research chemicals, not to bash a company’s reputation.  Scores were given on a scale of 1-10 with 1 being the worse, 5 being average and 10 being the best.  Here’s what we found. 1.    Top Peptides www.toppeptides.com Top Peptides sells high quality peptides at some of the lowest prices on the internet.  They’ve been around since 2010. 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I’ve ordered from them several times per year and they’ve always shipped the peptides within 24 hours Monday -Friday and same day by 4pm.  The package was a sealed Small flat rate USPS box which means the products were shipped domestically.  The box was the correct size and the products were bubble wrapped.  A stamped invoice was included in the box and a tracking email was sent to me within 24 hours of purchase. I tested their research chemicals for purity and accuracy and found that their chemicals and peptides are usually within about 3% accuracy, in most cases on the high side.  I’ve signed up for their newsletter and they send me an email every Friday with a coupon code for their weekend sale with discounts ranging from 25% to 60% off.  2.    Imperial Peptides This company has been around for almost 3 years and are extremely responsive to emails and customer support.  Their selection is above average with over 80 different research chemicals and peptides.  Their prices are better than the majority of the other companies and combined with an above average weekly coupon ranging from 15%-35%, I found them to be a solid online Peptides supplier.  I’ve ordered several different peptides from their website.  All of their chemicals were overfilled by about 2ml and their peptides were extremely accurate when verified in the laboratory.  Order are usually shipped the same day and are very professional.  Your invoice will be included in your USPS box and tracking numbers were emailed the next day. Upon checkout, you’ll receive an invoice with several payment options.  With Imperial Peptides, you don’t have to wait for it to be manually sent which is a huge convenience.  Within seconds, just check your email (also check spam folder) and several different payment options will be in your inbox.  They do have credit card processing available which will be sent on a separate email usually within a few hours after your purchase.  I’ve also found them to be very responsive on the weekends.  I use them very regularly as they carry 2 research chemicals that from time to time Top Peptides is out of and has lower prices on almost ten of the peptides I order regularly. 3.    Domestic Peptides Domestic Peptides is a USA based Peptide Manufacturer with above average low pricing, a large selection of almost 90 research chemicals and a very consistent and reliable business.  I use this company regularly because of its especially larger selection of SARM’s. They’ve been in business almost 3 years and I’ve found very little wrong with this company except on the weekends, it may take till the next business morning for a reply on customer service issues.  In saying that, aside from testing them for this review, I’ve never actually had any issues with any of the orders I’ve placed.  Solid trustworthy company. Like the others, the shipping standards are sealed USPS boxes, tamper proof seals around every edge and all products bubble wrapped.  Invoice is included and tracking numbers are provided.  They even offer free shipping on orders over $150. The quality of their products is excellent and the strength or potency of their research chemicals are usually slightly stronger so you definitely get your monies worth.  Compared to the other, I wish they sent out larger weekly deals and coupons.  The ones I’ve gotten about once a month have been between 10% -25% off. 4.    Enhanced Peptides Enhanced Peptides scored extremely high in almost every category.  Overall, they are one of my favorite USA Peptide stores online.  I buy peptides and research chemicals from Enhanced Peptides regularly because I find that they have slightly over 90 products to choose from and they are a good store to compare weekly deals with.  In saying that their regular pricing is lower than the majority of the companies online, however slightly higher than places like Top Peptides, Imperial Peptides and Domestic Peptides.  They do make up for it with their weekly email deals and coupon codes.  So, every week, I see which company has the best deal and it goes back and forth between these four companies with Enhanced getting at least an order per month from me. 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Scored 1-10    (1 bad - 5 average - 10 Best)

Top Peptides

Imperial Peptides

Domestic Peptides

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In conclusion, overall Top Peptides leads the 4 USA Peptide online suppliers that we recommend.  They all have quality and consistent peptides for sale and are all USA based.   Each company is a trusted source to buy peptides and research chemicals and each of them has a unique and individual benefit to use.  I recommend going to each of their websites, bookmarking their website in your browser and sign up for their weekly newsletter.  Then whenever you need to buy peptides, find the best deal between the four online stores.  I guarantee you’ll never have to look anywhere else.

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