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  1. #1
    Elite PillarofBalance's Avatar
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    5 Primary Causes of Injection Pain

    1) High Benzyl Alcohol content.

    Benzyl Alcohol (BA) is used to increase the lipid solubility of esterfied compounds and to prevent bacteria growth in the oil. Most UGL's use excess BA or only BA as the co-solvent, due to it's modest price. Unfortunately, it can cause the destruction of cells and significant localised pain and inflammation. The discomfort is characterised by fairly rapid onset of a painful, red, swollen area. This can be ameliorated by diluting the compound with sterile cutting oil (grapeseed, cottonseed, sesameseed). A 1:1 ratio often works well.

    2) Precipitation of short estered compounds

    The shorter an ester, the less solubility is has in oil. This necessitates higher concentrations of BA to prevent the compound from 'crashing' out of solution. When the oil is injected, the BA is absorbed from the location of the oil depot. This caused the active compound to precipitate fine crystals within the muscle. The onset of this pain is often 4-12 hours after injection and is characterised by a hard, red, swelling at the injection site. To prevent this an additional co-solvent is needed, Benzyl Benzoate. BB maintains solubility of the esterfied compound past the point at which BA has been removed, preventing crystaline precipitation. Most UGL's don't add this to their compounded oils due to the higher cost. If added at approximately 20% by volume you can prevent most associated short ester pain.

    3) High concentration (mg/ml)

    Per above, Long ester = high solubility, short ester = less solubility. Human grade pharmaceutical hormones are almost never dosed higher then 200mg/ml for long esters (cypionate). To increase the concentration, a larger amount of BA is necessary as a co-solvent. This can result in a similar reaction to that caused by short esters with pain and swelling as the BA is absorbed and solubility decreases and precipitation occurs. In this instance you don't 'need' the additional co-solvent (BB, but it still helps!). Instead, you can simply dilute the compounding oil with sterile cutting oil to lower the concentration to within the solubility for that ester.

    4) Fascia displacement

    This occurs when a large volumetric quantity is injected into a single site. The oil pushes the muscle fascia apart and results in stretching and eventually scarring with the muscle. This can be avoided by reducing single site injection volume and spreading the injections between multiple sites. This is also a good idea as more smaller, more frequent dosing significantly reduces many of the side effects of AAS. These become exacerbated by peak and troughs in hormone levels. The reduction in side effects is particularly dramatic with trenbolone acetate when an ED injection schedule is maintained.

    5) Histamine reaction

    This doesn't occur as often, but is still a potential possibility. For a compound to become biologically active the ester must be cleaved from the parent molecule. This results in the formation of a carboxylic acid. Some people find that they are sensitive to one of these. This results in swelling, warmth, redness and possibly a rash at the injection site. In the worst instance the individual may have an existing allergy to the carrier oil (sessame, etc...) that can result in anaphylaxis (swelling and occlusion of the airway) in addition to localised inflammation. If any histamine reaction results, immediately discontinue use and switch to an alternate carrier oil and/or alternate ester. If anaphylaxis results, immediately seek medical attention.

    Originally posted by Fraggle @Meso
    "Overzealous dosing" -Jin

    Rest in Peace Robot Lord. First round of Natty Boh is on me when I make it up there with you brother.

  2. #2
    Elite HH's Avatar
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    Re: 5 Primary Causes of Injection Pain

    Good read POB!

  3. #3
    Senior Member Gstacker's Avatar
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    Re: 5 Primary Causes of Injection Pain

    Ethel oleate..... Used as a carrier for short esters and or high mg/ml cuts alot of the pain out if not all the way out.... Try using it to cut some painful gear instead of grape seed oil... If ur not allergic to it, it's heaven sent...

  4. #4
    Elite Cobra Strike's Avatar
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    Re: 5 Primary Causes of Injection Pain

    Good thread pob

  5. #5
    Elite grizzldsealpoacher's Avatar
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    Re: 5 Primary Causes of Injection Pain

    excellent read, I always thought the pain was caused b/c I was putting a hole in my muscle.
    Enjoy Your Ride!

  6. #6
    Georgia
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    Re: 5 Primary Causes of Injection Pain

    Sticky! You know how many people start injection pain threads? Maybe can post in here since those threads are quickly answered and abandoned! Great info friend!

  7. #7
    Elite LeanHerm's Avatar
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    Re: 5 Primary Causes of Injection Pain

    Good post pob

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