How Do I Know if Real Botox is Being Injected?

You will never know what is being injected into you. Just seeing the Allergan hologram only means that the bottle you are looking at has a hologram on it.
The fact that you are asking this question means you are not in the right office.
You should choose a reputable physician who cannot afford to give you anything but the best. You will never worry about watered down product or fake product again.

You can visit the Allergan company website to see what the real Botox vial looks like. Better yet you can ask the physician to give you an empty vial and keep it with you to compare in future.
To avoid this issue, its better to go to a reputable physician because its not just the fake Botox you should worry about but also who is injecting it.
Regards

Probably the best way to know your Botox is real is to go to a reputable doctor. But, going beyond that make sure that the bottle your physician is getting your Botox from has a holographic foil stamp. You can find what the stamp looks like on the Botox cosmetic web site.

There have been some senational stories about people getting bogus Botox, and well-publicized prosecutions as a result. I think we are at the point where no medical professional in the U.S. is likely to risk their license by using something else. On the other hand, there was a case near Seattle where a non-medical person working in a beauty salon was injecting bogus Botox and something she told her patients was Restylane, all illegally imported from China. So my advice is watch out for deals that seem too good (Botox is expensive) and make sure it is a medical facility with the responsible physician's name clearly evident.

You are wondering if you are getting Botox when you are told that is what is being injected. You can certainly ask to see the bottle, but I would recommend that you are having it done by a physician, and you should have trust in that physician. If you are asking about the validity of what you are told, then you don't have enough trust in the provider you are having treat you. That may be a concern. You can check out the doctor's references by asking other doctors.

You could go to BOTOXCosmetic.com and check to make sure your physician is a provider. Looking at the bottle or package may be helpful as well.
I hope this is helpful for you.

Ana,
I agree with everyone here. The best way is go to a physician that is reputable in your area. That being said, if you are still unsure, you can always ask him to show you the vial, which will have a hologram. This, is not fool-proof, as the vial can be refilled with another substance.

Allergan Botox or Medicis Dysport are authentic botox type A. Ask to see the bottle, go to a reputable doc, trust your doc, and be sure not to pay too little for your botox. If it is too cheap then be wary. You should be spending $300 for the crows feet around the eyes or the frown lines between the eyebrows or the forehead. If doing multiple areas then you can get a discount so 2 areas should be $500-550 and if getting all 3 areas done then expect to pay around $675-800.

Ask to see the bottle. This has an identifiable holographic seal as well as a lot number and expiration date. You can also confirm if the physician is an approved injector on the Allergan website. However, Dysport by Medicis in a green vial is an comparable botulinum toxin with relatively equivalent efficacy.

It is important that you feel comfortable in the place you have your injections. You should know who is injecting you and with what product. If you have any suspicions and do not feel comfortable, you should seek services elsewhere. If you check Botox Cosmetic.com you will find providers that Allergan utilizes for injection of their Botox Cosmetic. Feel free to ask the Doctor to open the box in front of you, if this makes you more comfortable. Ask to see the hologram on the bottle. Quite frankly, it is more important that you know that your injector has experience with this product or any other facial injection (Restylane, Juvederm, Sculptra, Radiesse).