I have used this from the moment I feel a cold coming on. It seems to work and the theory is that it works by boosting your immune system by delivering a standardized dose of echinacea. I used to take drops of echinacea in my tea, but it didn't seem work quite as well. You have to take a lot of pills ...and so a bottle gets used up pretty fast - its pretty expensive.

Just saw a piece in Marketplace about this recently though...and apparently their claims are unsubstantiated and go further than they are allowed to go by the regulations. I wonder if I am creating my own placebo effect while its just delivering the usual echinacea dose I was getting in a much cheaper form.

Cold FX is awesome if you feel a cold coming on and catch it early enough that the pills/supplements are helpful. I usually grab a small pack as soon as I get the sniffles. You can buy them in different sized bottles, or you can get the little box (what I usually buy) that gives you the exact number of pills you need for a 3-day treatment plan (it's still around $15 for the box though).

I started using Cold FX on the recommendation of a friend, and it's usually my first go-to when I start to feel under the weather. You're supposed to take them daily to prevent colds, but they are WAY too expensive for that.

If you can, look out for when they are on sale - which happens fairly often. A 60- or 30-capsule bottle will last a long time for the 3-day treatment plan (instructions included on bottle) so when the price is reduced, the price is right.

I love this product and truly believe that it is effective. However, the price is crazy which stops me from purchasing them. I would for sure buy them if they were not so expensive.

I started taking these last winter from a recommendation from a co-worker and found they worked well as long as you take them with the first sign of a cough/cold.

I like Cold-FX...recently, my husband had the flu, but I didn't get sick. I was taking Cold-FX in the morning
and before bed-time before he got sick about 2 weeks before( he wasn't), during and after. It worked for me. I took 2 capsules 2x day while he was ill, otherwise,1 on a daily basis works for me. Haven't had a
cold this winter.

If you take the product as soon as you feel the cold coming is, is definately lessens the symptoms and duration of your cold....but if you take it after the colds started it really doesn't do that much.