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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
BioSteel Stackables Fermented Leucine Powder, Fermented Amino Acids, Gluten Free and Non-GMO, 150 ServingsAt BioSteel, we discovered that top athletes were using products with fillers, artificial sweeteners and flavours, mystery ingredients, and stimulants like sugar and caffeine before and after games and practices. This led us to develop a new standard of quality for sports nutrition. Our Fermented Leucine is pure, it contains no fillers or preservatives. It assists in lean muscle development, may help improve strength and has been known to help improve
At BioSteel, we discovered that top athletes were using products with fillers, artificial sweeteners and flavours, mystery ingredients, and stimulants like sugar and caffeine before and after games and practices. This led us to develop a new standard of quality for sports nutrition. Our Fermented Leucine is pure, it contains no fillers or preservatives. It assists in lean muscle development, may help improve strength and has been known to help improve your performance. Since it comes in an unflavoured powder you can add it to just about anything and mix it with your other supplements for customized nutrition. Whether you’re a professional athlete or just a sports enthusiast who takes their everyday workouts and activities seriously, Fermented Leucine was built to support you. Premium ingredients, product transparency, functionality, and authenticity—these values have helped BioSteel redefine and raise the bar for sports nutrition everywhere. And that’s what brought us here in the first place. *See full ingredients list **GMP Certified Vegan, Ann Arbor, MI, 3.3.2021Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 342 reviews
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Product Reviews
★★★★★ 5
Perfect Sweater
Nice material and nice color. Fits perfectly.
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Reviewed in the United States on January 6, 2026
★★★★★ 5
Comfy and stylish
Special Size: Wide Ribs, Size: Large, Color: White
This item is both soft and stylish, making it ideal for casual evening outings.
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Reviewed in the United States on February 23, 2026
★★★★★ 5
solid old style docs construction
i am a medium to wide-ish 7.5 in women's, that typically wears an 8 for room. these fit like a wider, roomy 8.5 women's. that is fine because i intend to wear them with thicker socks and for long walks.they are immediately comfortable, and do not feel like they will have the typical brutal break in period. very stable and fitted around the ankle, yet not impossible to pull on and off.
they are so handsome, and meet my expectations.
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Reviewed in the United States on November 11, 2025
★★★★★ 5
Get it!!
Size: 6 Women/5 Men, Color: Black Blizzard Wp
This shoe has been a dream for me. I live in an area that gets snow so having the inner lining is great. My feet haven't been cold and I’ve not felt the need to multi-layer my socks, like with other shoes. Unlike most doc marts, I did nor have to break in this shoe, its been very comfy from the get. Material is really durable and has lasted me a long time. This is a great shoe, especially for how affordable it is.
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Reviewed in the United States on December 31, 2025
★★★★★ 5
Authentic Docs for great price!
The boots I purchased were Chelsea 2976 in Nappa leather (not the brown Crazy Horse, but the Black; such nice and soft leather!) and unisex size men's 7/women's 8/EU 39 (I'm normally a women's US 9/EU 40, but that's what fit best--see notes on sizing below).
Considering the price, I was a little skeptical that these were genuinely Dr. Marten's, so I ended up bring them into a store to verify before wearing them--and multiple salespeople, who had worked for the company for 7+ years, said they looked like the real deal to them, which is amazing for the price (I got them when they were $99 online, but $160 in store; may have been a sale...?).
Before ordering, I also visited the store to get the right sizing--Dr. Marten's doesn't sell my normal size in the US (EU 40), so I needed help figuring out what to buy. In the end that was either a women's EU 41 or a unisex 39. Dr. Marten's women's sizes are cut more narrow, so if purchasing women's, I needed a longer shoe to give my toes more space (EU 41, which they say is a women's US 9 but on many shoes EU 41 is a US 9.5 or even US 10). Unisex sizes are wider, so I was fine with a shorter length (EU 39). In the end, the only real difference between the women's sizing and men's sizing on the Chelsea boot was at the ankle; for some reason, the women's 41 had more of a gap at the ankle and I worried that might make it rub/blister more, so I went with unisex sizing. It might also depend on the boot, so I'd say go to the store for sizing before purchasing online.
Once I got them & verified their authenticity, I got a but of things to help with weatherizing them and breaking them in (Dr. Marten's has a great kit! And, double thick socks). I did get a bad blister wearing them too long & uphill on the first day (and I had to get used to their weight; I don't have many heavier shoes). But, I used Compeed patches for the blister (should have put them on to prevent, but it was fine once they were on) and after a week of wearing them a little bit at a time, they are now super comfortable and I love them! Highly recommend!
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Reviewed in the United States on February 19, 2024
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