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To reduce irritation and lumps, it helps to rotate injection sites (dont inject the same spot repeatedly), inject into healthy skin (avoid bruised, scarred, inflamed, or irritated areas), and keep your routine consistent (many protocols are taken in the morning)

Timing: Administer at consistent times each day and rotate injection sites systematically

The pen has a built-in needle, delivers a fixed dose, and lets you know when its done

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This makes them particularly effective for individuals with absorption issues or severe deficiencies

It also includes media such as animations and comics, and in 2021, on the project's 10th anniversary, the new "D series" has been launched