L-Cysteine, 500 mg, 100 Capsules

I bought this as part of my process for faster hair growth. Until now, I was using a different brand, so I’m not sure if this one works. However, I must say that after 3 months of regular use of 1 tablet a day, my hair is truly growing faster – I can actually see baby hairs. The shipping is fast, the package is excellently packed, and the price is reasonable. I’ve already ordered from iHerb and will continue to do so; I am very grateful, thank you iHerb!

L-cysteine is a semi-essential amino acid that helps with just about everything. Here is a short list: skin health, digestion, blood sugar regulation, and exercise recovery. Also helps antioxidant functions, lung function, brain function, and liver detoxification. I take 3 pills / day; 1 in the morning, 1 at noon, and 1 at night. Remember to always follow the directions on the bottle.

L-cysteine is considered a non-essential amino acid because the body can produce it, but that doesn’t mean that it always produces enough. California Gold Nutrition® L-Cysteine can help you supplement your diet with this important amino acid, which can support antioxidant production and provide other key health benefits.

One of the best products I've ever used. Would buy it again no matter the cost. Simply amazing, highly recommended!

I have been using Nature’s Life L-Cysteine 500mg regularly. The scent is neutral, so it’s easy to take daily. The quality is excellent, and the size of the bottle is perfect for long-term use. It’s suitable for my age, and the packaging is sturdy and convenient, keeping the capsules safe and fresh.

Not sure if this is what I needed and will try other forms and look into other brands. I do like the dosage and quantity of pills offered.

This is my second time getting this product the price is suitable for the quantity it come in a very good packaging and I have seeing amazing improvement on it

Good size and quality, just started it so I have not seen results

So good product. It helps me with hair loss and skin. I will continue taking it for at least another 2-3 months. I also see a lot of new growth. I've been taking it for two months - my hair has stopped falling out.

This provides a standard amount of L-cysteine (500 mg) for a fair price and amount of capsules (100). The quality is good and the capsule size is average. The pungent or somewhat eggy smell is normal for this amino acid. Stick carefully to the recommended dosage as excess L-cysteine can be quite toxic, and I imagine one of the reasons may be due to a large increase in hydrogen sulphide generation (depends on your microbiome probably). Given the importance of this amino to the production of L-glutathione it has been postulated ageing and it's complications may be due to a cysteine deficiency, the reason being that most elderly people have decreased appetites and eat less protein. So it appears that cysteine could be called the most essential of the non-essential amino acids, and certainly conditionally essential! As well as being important for healthy skin, hair and nails, it is vital for liver function, building muscle, producing digestive enzymes and other enzymes, peptides and proteins, as well as hormones. This can be a useful supplement if you are careful with it and use it with other aminos and essential nutrients, plus a good clean diet. The hydrochloride form in these capsules is, I feel, more stable and less reactive than free form cysteine. I find that it can provide a nice boost of energy and mood if taken just before dinner (please note that in Ireland we usually dinner in the middle of the day, around 1 pm, and not in the evening!). If you don't like to take isolated amino acids perhaps try a good quality protein powder such as casein or egg white protein, which has every amino acid needed.