Ultra Labs DL185 Dileucine Peptide
Ultra Labs DL185 contains a state of the art research grade peptide, DL185. This is a patented Dileucine Peptide that has been shown in clinical studies to promote greater activation of muscle protein synthesis (MPS) and total strength.
What is Dileucine Peptide
DL185 contains a clinically researched natural anabolic and anti-catabolic peptide composed of two leucine molecules bonded together, creating a unique, patented dipeptide structure, DL185 Dileucine Peptide.
Dileucine is a peptide consisting of two leucine molecules chemically bonded to one another that get into the bloodstream intact and can boost protein synthesis better than regular leucine – and we don’t mean just a ‘little better’ either!
In a ground breaking study, subjects who consumed 2,000 mg. of DL185, the same dosage found in Ultra Labs DL185, demonstrated a greater activation of muscle protein synthesis compared to baseline and regular leucine.
Research on DL185
Study 1- In a double-blind, randomized, crossover study published in 2021 in the Journal of Applied Physiology, researchers found that DL185 is more effective at stimulating muscle protein synthesis than leucine in healthy young males.
Study-Dileucine Ingestion Is More Effective than Leucine in Stimulating Muscle Protein Turnover in Young Males: A Double Blind Randomized Controlled Trial (Paulussen, Kevin J.M., et al.)
Study 2-A randomized double-blind placebo controlled study that was originally presented at the 2023 International Society of Sports Nutrition (ISSN) conference was recently published in the prestigious journal PLOS One. This may not mean anything to the average person who is not familiar with these terms, but to anyone that is, they know how significant that this is. PLOS One is a peer-reviewed open access scientific journal that prioritizes research with strong methodology and high ethical standards, not just groundbreaking findings and all articles undergo a thorough peer review process
This study validates earlier findings that demonstrated DL-185™ has superior effects compared to leucine for increased muscle protein synthesis (MPS) and adds to the growing evidence showing DL185’s role in supporting muscle, strength, and performance.
Study-Dileucine ingestion, but not leucine, increases lower body strength and performance following resistance training: A double-blind, randomized, placebo-controlled trial (Hagle, et. al 24)
How to take DL185 Dileucine Peptide
Take 4 capsules per day. On training days, take 4 capsules 30 minutes before training or immediately after training. On non-training days take 4 capsules in the morning.
How long can you take DL185 for?
DL185 can actually be taken ongoing as a tool to help increase MPS and muscle growth. If you want to take a break, the product is best used for 12 weeks with a 2-4 week break. DL185 can then be started again.
Protein and DL185 Dileucine Peptide
It is important to consume adequate protein intake in order to get the best possible results from your training regimen. The role of DL185 is to increase muscle protein synthesis which is the process by which your muscles repair themselves and grow!
What can you stack DL185 with?
DL185 can be stacked with many of the Ultra Labs range to create further results.
DNF10 – Build and retain muscle while dropping kg’s. It suits people trying to build muscle and stay lean OR dropping kg’s fast and retain muscle.
PeptiStrong – To create a premium muscle building and recovery stack. These 2 products will work hand in hand to improve body composition.
Epicatechin – Either with DL185 or as an alternative to for the next Generation Stack.
LJ100 – Get the benefits of muscle building and hormonal optimisation all in the one stack.
Turkesterone and/or Ecdysterone – Enhance recovery, muscle building and Muscle Protein synthesis all in one stack.
Due to the nature of these products they are safe to take together. There are different dosages and timing requirements for each of the products to keep in mind.

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