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Description
Rejuven Blue - Methylene Blue Powder 5 Grams Pharmaceutical GradeRejuven Blue Methylene Blue Powder 5. 0 Grams USP 99. 5% Purity A total of 5 grams of powder. Perfect for DIY biohackers to add to water for their own solution. Rejuven Blue comes in a vial containing 5. 0 grams of methylene blue powder, designed for easy, precise reconstitution in purified water for those seeking a high purity formulation. Also available with an optional dosing kit containing a constitution bottle (recommended for first time buyers),
Rejuven Blue – Methylene Blue Powder 5.0 Grams USP 99.5% Purity
A total of 5 grams of powder. Perfect for DIY biohackers to add to water for their own solution.
Rejuven Blue comes in a vial containing 5.0 grams of methylene blue powder, designed for easy, precise reconstitution in purified water for those seeking a high-purity formulation.
Also available with an optional dosing kit containing a constitution bottle (recommended for first-time buyers), this product allows for easy preparation of a 500mL solution tailored to your needs.
Each vial provides about a 4-10 week supply or longer, depending on dosage.
- 5.0 grams of 99.5% USP Pharmaceutical-grade methylene blue
- Pamplet with dosing schedule and best practices
- Free shipping within the USA
- Ships from Idaho
3-pack Special: 3x 5g Rejuven Blue Powder Total of 15 grams: $99.99
Optional Complete Dosing Kit (+$29.99) (RECOMMENDED)
- 500 mL glass bottle for constituting 1% solution
- Glass measuring pipette (10mL)
- Glass vial
- Funnel
- 2 oz amber glass dropper bottle
- 1/4 tsp measuring spoon
FOR THOSE WHO WANT IT DONE FOR THEM:
Pre-made 1% Solution in 2-oz bottle (59 mL)
To support optimal use, Rejuven Blue includes a detailed dosing insert outlining a scientifically backed regimen for maximizing the nootropic and longevity-supporting effects.
Unlike many other formulations that under-dose methylene blue, Rejuven Blue is designed to deliver a research-based, effective range of 1-4 mg per kg of body weight per day, ensuring the full potential of this compound is realized. For those new to methylene blue, the constitution bottle simplifies preparation and ensures accurate dilution for safe, effective daily use.
Instructions:
- Simply add the powder to 500 mL of purified water in a glass or HDPE container and mix well. Optional 500 mL reusable glass container can be purchased to be filled to the top.
- Store in a cool, dark place
- Recommended to drink with a straw
- Methylene blue taken orally has a half life of about 20 hours. For optimal effects, consume roughly 8-12 hours apart, at least 5 hours away from sleeping. Ideally, it is taken upon waking and in the mid-afternoon.
- Each 1 mL is 10 mg of methylene blue. Example, dosing at 150 mg/day in 2 divided doses of 75 mg, you will draw / measure out 7.5 mL of the 1% solution
- Dosing schedule included in product as a pamplet, as well as available here for download.
REFERENCES:
PUB MED: The Potentials of Methylene Blue as an Anti-Aging Drug
NOOTROPICS EXPERT: Methylene Blue (Info on optimal dosing)
Benefits
Potential Benefits of Methylene Blue at Research-Supported Doses
- Cellular Energy Support – Plays a role in mitochondrial function, which is essential for efficient energy production.
- Cognitive Optimization – Studied for its potential to support focus, mental clarity, and overall brain function.
- Antioxidant Properties – May help neutralize oxidative stress, a factor associated with cellular aging.
- Metabolic Efficiency – Research suggests it could support cellular respiration and metabolic function.
- Supports Healthy Circulation – May aid in optimizing oxygen utilization at the cellular level.
- Neuroprotective Potential – Explored for its role in supporting long-term cognitive health.
- Mood & Mental Resilience – Investigated for its possible impact on mood regulation and mental well-being.
Disclaimer: These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Please consult a healthcare professional before use.
Shipping 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
4.2 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Best toy for heavy chewers
Color: Green
My dog is an aggressive chewer and I have trouble finding toys that last longer than 5 minutes before being so destroyed it is no longer safe to let him keep it. He loves this toy and naws on it for hours daily. Yes, it has multiple chew marks, but it is still intact completely. No little pieces have been chewed off. I highly recommend this toy for any dog especially those who destroy every toy in seconds like mine does.
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Reviewed in the United States on October 12, 2025
★★★★★ 2
NOT Indestructible and a Nylon Product (NOT A CHEW TOY)
Color: Green, Color: Green
I gave this dog toy 2-stars based on my dog toy rating system (DTRS) for “Bruce” the Green Alligator!
Unfortunately, I didn’t notice in the fine print of the product description on the website that this toy consisted of Nylon. If I noticed that description, I would’ve never purchased this product. Please do your own research on Nylon wrt teeth. I wasn’t impressed with the toy construction out of the box. The nylon head and tail sandwich the rubber body with soft rubber spines on Bruce’s back for easy gripping. This is not an “Indestructible” dog toy.
Safety (1-rating):
1. I was always concerned about my dog’s teeth possibly cracking while he was chewing on Bruce’s Nylon ends. Thankfully, his teeth were fine throughout the use of this toy.
2. The Nylon came off in small pieces after a few hours and continued for the life of the toy; see picture. I never intended for my dog to swallow pieces of Nylon.
3. Bruce’s rubber rear end is where most of the damage occurred, as my dog was tearing off pieces of rubber and spines, which he thankfully passed through his system over a period of 2-3 days after I threw Bruce away; see picture.
4. The chewed-up Nylon ends were very hard, rough, sharp and pointy. There were occasions where I noticed my dog’s gums were bleeding as a result of chewing this toy.
5. Bruce is big enough not to swallow in its entirety, which is why I’m giving this a 1-rating for safety.
6. This is a molded product and not a plush product.
Durability (2-rating):
1. It took my dog 1 to 2-weeks to get the toy in the shape that is shown on the posted photos.
2. The Nylon was immediately being scratched and scraped apart on day-1. Then I noticed pieces of Nylon coming off of Bruce after 3-4 days.
3. The rubber was immediately being punctured with small divots around the body on day-1. I noticed over the next couple of days that my dog was focusing on the rear end and trying to pull the rubber off the Nylon tail.
4. The rubber started coming off more quickly after 1-week, until I removed it all together.
Squeaker (N/A):
1. Bruce has no squeaker.
Fatality (2-rating):
1. Bruce had a longer life than most of my dog’s toys, but then again, I expected this to last much longer as the seller claims it is “Indestructible”, which it is not.
2. I tried filing off some of Bruce’s chewed up Nylon ends to smooth them out for more chew time, but came to my senses and just threw him away for safety concerns only.
In conclusion, “Bruce” the Green Alligator should not be given as a chew toy, but more as a fetch toy, unless you want your dog to digest the Nylon and rubber materials.
Days of Enjoyment
Given to Dog: 12/16/2024
Dog Toy Death: 01/08/2025
Total Days Used: 13 days (11 days spent away from home during the holidays)
About my dog “Cannoli” for comparison
Breed: Blue Healer / Lab mix
Sex: Male
Age: 8-months
Weight: 45-lbs
Size: Medium
Energy Level: High
Chew Rating: Aggressive
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Reviewed in the United States on February 26, 2025
★★★★★ 5
This has been a challenge for my extreme chewer! The toy is winning
Color: Green
Indestructible? Not for my pitbull. Except on this toy. She has slowly chewed some of the outer portion on the backside, but it still has a lot of gnawing time left. This is her go-to toy now. she carries it nearly everywhere. She loves it. I am amazed at how well it is holding up. Within minutes, hours or a few days, the other "indestructible" toys I've purchased, never survived as described.
This is a heavy toy! Not for the weak! I cannot stress enough the extreme chewer my dog is. Yet, I can see this toy lasting months. It won't be pretty then but it will most likely still be a favorite chew toy. I'm glad I found this and will be buying more.
FYI's... 1) Chewability-5 stars 2) Softness-1 star, it's solid but chewable, 3) Bounce-0 stars, No bounce, it's heavy!, Playability- 5 stars. My dog plays with it, lets it lay with her when resting. Nearly always within her reach. She sleeps with it! That's love.
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Reviewed in the United States on January 2, 2026
★★★★★ 5
My buddy has been chewing on this for an hour!
Color: Green, Color: Green
This dog toy has been a great addition to our dog’s toy collection! My dog can be a pretty aggressive chewer, so I’m always looking for toys that are durable and can actually hold up to daily play. This one has been surprisingly tough and has lasted much longer than many other toys we’ve tried.
The material feels strong and well made, and the design makes it easy for my dog to grip and chew. He loves carrying it around and tossing it during playtime. It’s also great for keeping him busy and helping reduce boredom, especially when he has extra energy to burn.
Another thing I like is the texture of the toy. It seems to help keep my dog engaged, and it’s sturdy enough that I don’t worry about it falling apart right away like some softer toys do. It’s been used for chewing, tugging, and even some fetch around the house, and it’s still holding up really well.
The only small drawback is that I wish it had a squeaker inside. My dog absolutely loves squeaky toys, and I think that would make it even more exciting and keep him interested for longer periods of time.
Overall though, this is a very solid and durable dog toy that’s perfect for dogs that love to chew. If you’re looking for something tough that can help keep your dog entertained and reduce boredom, this is definitely worth try
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Reviewed in the United States on March 12, 2026
★★★★★ 5
Great Toy For Aggressive Chewers
Color: Green, Color: Green
My Boy loves it! It is a little heavy but it keeps him busy. Very strong and sturdy for aggressive chewing. We named it Ally the Alligator. He loves it definitely would recommend!
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Reviewed in the United States on May 25, 2026
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