I just keep injections to the same time whether daily or weekly injections. I've never noticed any difference between injecting the same time everyday and workout three hours later from working out 6 hours later. Now the no esters might definitely help with the timing of injections but I personally have not used them yet so I can't say. I would just get a regular schedule of injections depending on what you're using.

Idk, what are you injecting?

Eh just reach steady state serum concentration with a set/standard pinning schedule and then go bust your ass in the gym regardless of timing.

You’re overthinking this. Spend all this mental bandwidth on diet consistency and a properly programmed and hard workout routine. The gains will come. Worrying about timing your workout to pin timing is not netting you any appreciable progress.

The fact that you brought up the phrase "before a workout" to me insinuates you're looking for a boost in that category or want to feel it while you're in the gym. But you didn't mention testosterone either, so I will give a couple options for other compounds too. If it's testosterone, either TNE (test no ester) aka suspension then 1 hour before. If it's Test Prop, then a few hours before. These esters have 8 - 48 hour half lives. If using Anavar, or Anadrol, then a few hours before as they have 8 hour half lives. Beware of these 2 as the back pumps from deadlifts, rows, etc. can be painful in a good way.

What ester?

Good question bud, and yes it makes a difference. It is also dependant on what the compounds you are running are too - although whether its Aces, Prop's or Enanthates/Cyps it can still make a big difference to training if its injected 10 to 12 hours preworkout. Its not to do with half lives of the esters but how quickly the hormone comes into play and when the ester that is attached to the hormone is cleaved off. Enanthate for example peaks its highest at 24 hours in and actually begins entering the bloodstream as soon as it is injected. So inject 300mg of Test E and train 12 hours later and you already have around 150mg of Test giving you energy and power in training. Prop on the other hand is totally different and will hit the bloodstream all in one go at between 8 to 10 hours. So if you train at 5 hours post injection you will indeed feel nothing but at 11 hours afterwards there you have a big whack of Prop. This is what I do using prop, when I get up midway through the night I will inject it along with NPP, then eat and go back to sleep. By the time I am then back up and have a few meals in me the Prop has hit and I am ready to train. Suspensions and Bases are generally done an hour before. When it comes to Decanoates and undec's forget it though as they tend to take around 2 days to peak and you will feel no benefit to them in training. With your longer esters you will already have a build up of hormone to train on, but injecting it at the right time will still make a difference.

Injecting these slow esters before training or 10 hours before training has no function. The half-life of these esters is approximately 7 days. Half-life = "The half-life of a drug is the time it takes for the amount of a drug's active substance in your body to reduce by half". You should take something that has a half-life of a few hours, not 7 days. Before training, only steroids without esters or orals are taken. Cross off the place where you read it or the person who told you to take these esters before training, because that way you will pick up much worse advice that you can harm yourself.

This really is crazy to me that one can inject without studying what will be in their bodies and potential side effects while also being fully committed to harm reduction. I say this because you don't have dosages listed and don't seem to understand the differences in short vs long chain esters. I wish you the best of luck but you have the greatest tool available at your fingertips (this sites search function) since you already made an account.

Lot of bros will help you here as will I, but if you can't perform the basic research, bros sometimes get jaded with amount of same questions posed every day. This is also something neat to play around with when you get a chance. Photo and link related
https://www.steroidplanner.com/

Do a set. Rest. Another set. Inject. Rest. Another set
Or do 4:20 before or after your workout. 4min 20sec or 4hrs 20min

Depending on what your injecting it’ll probably have no effect on your workout. If it’s test suspension I’d say 45 mins to an 75 mins before workout. If it’s test E then you can do it 10 hours before, during or 10 hours after and it’ll make no difference on your workout. Just try and do you shot at the same time eveyday. If you want a better answer than tell us what your going to be injecting