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A study found that injectable Vitamin B12 was more effective than oral nortriptyline, a common neuropathic pain treatment, in reducing symptoms such as paresthesia and tingling

It also can be used intravenously (IV)

Why Oral Tablets Are Popular in Pakistan Oral glutathione tablets are widely preferred in Pakistan because: They work systemically, supporting overall skin health rather than spot treatment They are easy to use and fit into daily routines Many users combine them with Vitamin C, which helps improve glutathione absorption Tablets are considered more consistent and controlled compared to topical-only solutions This inside-out approach aligns well with long-term skin care goals, especially for individuals dealing with dullness, uneven tone, or environmental skin stress

RAW combines both in one clinically dosed scoop because the research shows they work better together than either does on its own