What Exactly Happens During A Botox Injection

Botox as a rule of thumb comes in 100-unit vials, which could be stored in a refrigarator (two degrees to eight degrees) for up to two years.

Before administering the Botox injection, your aesthetician would reconstitute the Botox with sterile salt water, diluting to a formulation of 4 units Botox for every 0.1 mililitres of salt water. It's imperative that your aesthetician check the expiration date on the vial, and that the reconstituted Botox is clear, colourless, odourless and free of particles before you receive the injection of Botox.

Once the vial has been opened and mixed, the Botox should be stored in a refrigerator (two degrees to eight degrees), and used within 4 hours. Any remainder should be discarded with care as medical waste and NOT shared with others.

To start the Botox injection, the aesthetician will use a sterile syringe to draw no less than 0.5 mililitres of the properly formulated toxin, and remove any residual air bubbles trapped in the barrel of the syringe. The used needle is then removed and a new one attached to give the Botox injection.

Your aesthetician shall then ask you to make several face expressions such as frowning, smiling and raising your eyebrows. Through these your facial lines and the muscles involved can be observed to help with the decision of an effective dose and the points of injection.

To minimise the chance of eyelid dropping, your aesthetician must ensure that the volume which is is accurate and where possible kept to a minimum. The Botox shouldn't be injected closer than one cm above the central eyebrow, or near the levator palpebrae superioris muscle.

The entire session takes between 10 and 30 minutes. The injection starts to work after 1 or two days, hitting highest efficacy after 7 days. The resulting improvement will persist from 3 to 6 months before the next course is necessary.

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Dr Vincent T is a UK-based physician who's concerned about the unregulated state of botox administration by unqualified practitioners. To prevent uninformed customers from making the wrong choice, he operates a website dispensing free info on anti-wrinkling botox treatment.