glutathione vitamin c and collagen Amazon.com: Cenffitio Supplement – Skin Brightening Formula with C, Niacinamide, & Hyaluronic Acid – for Skin Brightness, Radiance & Hydration – 180 Tablets : Health & Household Amazon.com: Cenffitio Glutathione Supplement –
Description
using a dual-pathway formula daily supports steadier, more visible improvement than single-active lotions, though patience is part of realistic brightening

Al-Serori H., Setayesh T., Ferk F., Mik M., Waldherr M., Nersesyan A

Ingredients: B12 Methylcobalamin 2000mcg (2mg)Benzyl Alcohol 15%Sodium Chloride 0.9%Water for injection, ph (range 4.5-7.0), adjusted with Sodium Hydroxide

I was thinking of adding 5ml of bacteriostatic water to have 1000IU per ml but the vial is so small and not sure if it will hold 5ml of bac water(see image)

Available in both injectable pre-filled pens and nasal spray variants