Glutathione has become very popular on social media, often with exaggerated promises. Here's what it is, what's known with more confidence and what to check before taking it.
What is glutathione?
It's a small molecule made of three amino acids that your body produces naturally. It's part of the cells' antioxidant systems, which help manage everyday oxidative stress.
Why is it linked to skin?
Because it takes part in antioxidant processes and in pigment regulation. That's where its reputation for radiance comes from. However, studies on its effect on skin when taken orally are few, small and show mixed results.
That's why at Pepfine we present it as an antioxidant within a wellness routine, not as a product to lighten skin or treat dark spots.
Is it absorbed when taken orally?
For years it was thought to be destroyed during digestion. Some more recent studies with daily doses over several months found increases in the body's stores, especially with the reduced form. It's still being studied.
Injections: better not
Glutathione injections for skin lightening aren't approved for that use, and health authorities in several countries have warned about their risks. A quality oral supplement and a routine with sunscreen are a much safer option.
How to choose a supplement
- That it states the form: reduced glutathione.
- That it shows the amount per serving, not just per bottle.
- That it was made in a GMP facility and tested by an independent lab.
- That it doesn't promise to cure or whiten: those claims aren't allowed for a supplement.
How to take it
Follow the serving on the label, with water and preferably before a meal. As with any supplement, consistency matters more than quantity.
Who should check with a doctor first
If you're pregnant or breastfeeding, take medication, have a health condition or are receiving cancer treatment, check with your doctor before taking glutathione or other antioxidants.
Glutathione and vitamin C: why they often go together
Vitamin C and glutathione are part of the same antioxidant network in the body. That's why many formulas combine them. Vitamin C also contributes to normal collagen formation, which is well established.
What you can do for your glutathione without supplements
- Eat enough protein, which provides the amino acids your body makes it from.
- Include vegetables such as broccoli, cauliflower, spinach and garlic.
- Sleep well and moderate alcohol.
- Protect yourself from the sun, which increases oxidative stress in skin.
How to read a glutathione supplement label
Check the serving (how many capsules), the amount of glutathione per serving and the other ingredients. If the total of everything it claims to contain seems impossible for the number of capsules, be wary: a regular capsule holds less than a gram in total.
Frequently asked questions
Can I take it with vitamin C?
Yes, it's a common combination in supplements. Make sure the total vitamin C from everything you take isn't excessive.
How soon will I notice something?
Supplements don't give immediate changes. If you take it, do so for at least two or three months and see how you feel, without expecting dramatic skin changes.
Does glutathione lighten skin?
There isn't enough evidence to say so, and a supplement shouldn't be sold with that promise. For a more even tone, what has the most support is daily sunscreen and a consistent topical routine.
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