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The AUS LABS Bridge Stack is a potent muscle building combination perfect for that time between steroid cycles in research subjects. The stack contains:

There is one method for consuming SARMS that stands out above the rest and is the one of the most optimal forms of use. This is the method known as “bridging”. If you are not familiar with bridging, it is the time period that you have in between hormone based cycles (steroids) when your test subject is recovering however it can also be used by non-steroid users as a stand alone potent 8 week cycle.

The time between cycles is a vital time as it is a time when many test subjects are trying to find that same drive that they have while on a steroid cycle. Not only can SARMS help you to maintain your gains, but they can polish them up and even add to them. Results indicate increased lean muscle mass, body fat loss and strength gains all with minimal suppression when used at correct dosage.

SARMS often provide the “ON” feeling that many have on steroid cycle and can provide even more energy and many users have reported feeling even better on SARMS than on cycle. There are many different methods and cycle combinations that can be used with SARMS as a bridge. You can use them to add lean size, to recomp, to cut, etc. The beauty of SARMS is the versatility that they provide and the many options that you have with their use.

GAIN (LGD-4033) is non-steroidal oral product that binds with Androgen Receptors (AR) which produces steroid-like results minus the steroids. It is the closest SARM that can be equated to an anabolic substance in terms of strength. GAIN (LGD-4033) is also the strongest of all the SARMS in terms of the size and strength you can gain.

PUMP (S-23) is an orally active non-steroidal SARM with a very high binding affinity to androgen receptors. This makes it

stronger than other popular SARMS like MAINTAIN (MK-2866) or MASS (S-4). Therefore, the main effects of PUMP (S-23) are increased muscle mass, decreased fat mass, and a decrease in the size of the prostate.

TEST (RAD-140) is our latest addition to our line of premium SARMS, where it shines with very strong anabolic properties, and extremely mild side effects. Due to this safety, TEST (RAD-140) will be a perfect match in any steroid stack, and it will definitely be a very beneficial compound to use on its own. All in all, TEST (RAD-140) is an unbeatable SARM, since it will increase endurance, recovery, strength, and muscle mass all at the same time whilst displaying very mild side effects.


We suggest the following dosage structure:

- PUMP at 20mg ED

- TEST AT 15mg ED

- GAIN at 5mg each ED for a total of 8 week.

Each bottle has a volume of 30ml with an average dose being 0.5-1ml (1/2-1 full dropper squirt) and will last for 30 days. Total length of stack is 8 weeks (at dosages listed above)


PUMP (S-23): (2S)-N-(4-cyano-3-trifluoromethylphenyl)-3-(3-fluoro-4-chlorophenoxy)-2-hydroxy-2-methyl-propanamide, Food-grade USP glycol, food-grade ethyl alcohol and essential oils.

GAIN (LGD-4033): 4-[(2R)-2-[(1R)-2,2,2-trifluoro-1-hydroxyethyl]pyrrolidin-1-yl]-2-(trifluoromethyl)benzonitrile, Food-grade USP glycol, food-grade ethyl alcohol and essential oils.

TEST (RAD-140): ((2S)-3-(4-cyanophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide) , Food-grade USP glycol, food-grade ethyl alcohol and essential oils.


Cool and dark space like a cupboard or pantry.

No statements made on this page have been evaluated by the Bundesministerium für Gesundheit (BMG) or the Therapeutic Goods Administration (TGA). These products are not intended to treat, cure or prevent any disease or illness. All products are strictly for research purposes only. Please refer to the TERMS OF USE for more information.

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