We have all done our own research. NPC is a great option for our cycters. If you feel that you need it and want to use it...go for it!! I will be starting it after I O.
__________________ Nicole (32) & Marc (29)
3 angels in heaven
IVF#1 - Caden Joseph born 12/27/07
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Hi all! I've used progesterone cream off and on for years, with great success. I'd rather regulate my cycles with npc than bcp any day of the week, even though a gyno once gave me crap about it. I'm always careful to get usp progesterone, and avoid anything derived from wild yam, since I read Dr. Lee's book. Currently I'm using Emerita, in the individual dose packets.
It's bad because it isn't bioidentical progesterone, but progestins and progestogens, which are foreign to the body and can cause cancers.
Natural progesterone cream should say "USP Progesterone" right on the label.
I would throw that Rexall garbage right in the trash. It's dangerous, as are all progestins and progestogens.
Mallory is correct in some aspects. Progesterone creams that do not say USP on the label have not been verified by the USP.
Whether or not Rexall uses bioidentical progesterone is not confirmed or denied at this point, and it is unknown whether or not it contains progestins. However, it has been determined that the Rexall brand does not say USP on the label. Further research was attempted, but the information obtained, in my opinion, was inconclusive. So whether or not someone chooses to use that particular product is a personal choice that needs to be made based on some in-depth research by each specific person, not just the information on this thread. (However, in my own mind, if there is even a question about the quality of the product, I'd prefer not to use it. Just my own personal opinion.)
That said, there are several other brands of progesterone cream listed on the first page of this thread that do contain USP progesterone.
Let's not let this thread turn sour like the other one did.
Last edited by Sarendipitous; 08-14-2006 at 11:38 PM.
Hey Bon - good to see you here! Why should cream derived from wild yam be avoided?
It seems it's more complicated than just avoiding wild yams, because I'm gathering that is a common source of np. I guess the deal is, you need cream in which the yam is converted to npc in a lab, rather than just a wild yam extract that relies on your body to do the conversion, which apparently it cannot do. I have now confused myself...
This is from a site selling its own brand of npc, so take it fwiw...
Quote:
Most pharmaceutical grade progesterone is made from diogensin found in wild yams. Diosgenin is found in other plants as well but not in amounts significant enough to be of value. Diosgenin is converted into natural progesterone scientifically. There are no enzymes in the human body that will convert diosgenin, which is the active component of wild yams into progesterone. You can eat or rub on your skin all of the wild yam extract you like but the body will not convert it to progesterone. Diosgenin is still very useful in the body, however, and has been used by phytotherapists for centuries as an adaptagen. Whatever the effects of wild yam, it does not have the same benefits as natural progesterone.
Many companies sell wild yam products containing diosgenin stating that they provide the same benefits as progesterone. It is also added to many genuine progesterone creams in which it is usually identified as "wild yam extract". However there is usually not enough diosgenin in these creams to have much of an effect. Thus, many women using a wild yam cream have stated that they just don't seem to feel any change. Most of the research that has been done on progesterone demonstrates that it is supplemental natural progesterone that will produce an increase in saliva and serum levels of progesterone, not yam extract.
Dr. Lee's site says this (but dr. lee himself doesn't say anything anymore, since he's dead)...
Quote:
The USP progesterone used for hormone replacement comes from plant fats and oils, usually a substance called diosgenin which is extracted from a very specific type of wild yam that grows in Mexico, or from soybeans. In the laboratory diosgenin is chemically synthesized into real human progesterone. The other human steroid hormones, including estrogen, testosterone, progesterone and the cortisones are also nearly always synthesized from diosgenin.
Some companies are trying to sell diosgenin, which they label "wild yam extract" as a medicine or supplement, claiming that the body will then convert it into hormones as needed. While we know this can be done in the laboratory, there is no evidence that this conversion takes place in the human body.
Right, what I'd gathered from different sites is that NPC derived from wild yam is totally different than just wild yam cream. But the way I understand it, NPC made from either wild yam or soy is totally fine to use, because most NPCs are derived from one or the other.
* Virtually all progesterone cream is derived either from soy or wild yam. There are some studies that show wild yam has in the past few years been found to be the best source of natural progesterone cream. This is not to say that plain Wild Yam Cream is a source of progesterone - there is a difference. That means that, like soy, wild yam has been synthesized into progesterone cream - soy is not progesterone, either. Creams derived from either are okay to use.
Right, what I'd gathered from different sites is that NPC derived from wild yam is totally different than just wild yam cream. But the way I understand it, NPC made from either wild yam or soy is totally fine to use, because most NPCs are derived from one or the other.
got ya. it is all so confusing! what i do is look for the usp, and avoid anything calling itself "wild yam cream."
Quote:
Originally Posted by Sarendipitous
This is not to say that plain Wild Yam Cream is a source of progesterone - there is a difference.
I'd rather regulate my cycles with npc than bcp any day of the week, even though a gyno once gave me crap about it.
Hey Bonnie! I agree with you wholeheartedly on that. Although, if I may ask, why did your gyno give you trouble about it? Just curious. Good to see you, and thanks for your input on this topic!!!
__________________ Rebecca ~ 35
DH Matt ~ 39
Married 11-20-04
TTC'd #1 for over four years. Never pregnant.
Reconciling from a separation from my husband, TTC will likely resume after the first of the year...fingers crossed!
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Where are you getting this info? I know that progestins like Provera should not be used in pregnancy, but progesterone in various forms is frequently used with great success. I used Prometrium and later Crinone in my first trimester and had a great pregnancy! So I don't know what you mean by dangerous. Also if you notice a lot of ladies here have done some in depth research on the whole "USP" thing, so it might be a good idea for you to go back over the last couple pages to see what they found out by actually calling Rexall and USP.
Where am I getting this info? Various places, but a good example would be Dr. John Lee's work. He explains how introducing something foreign into the body (ie, the urine of pregnant mares) is ultimately unhealthy, while using bioidentical hormones is good for you, because it is what your body recognizes.
Has no one else read any of the recommended books from the thread posted right on this board?
Various places, but a good example would be Dr. John Lee's work. He explains how introducing something foreign into the body (the urine of pregnant mares) is ultimately unhealthy
You're referring to premarin. I would personally never touch the stuff, but that's just me.
We have all done our own research. NPC is a great option for our cycters. If you feel that you need it and want to use it...go for it!! I will be starting it after I O.
Nobody said NPC wasn't a good option. I would never part with mine.
What I am trying to do is point out the difference between actual natural progesterone cream and progestin/progestogen cream.
Okie dokie.... well I called Nature's Bounty, the company that makes the cream I have been using, and talked with a dietician there who said that the progesterone in their cream has been synthesized so that our bodies can break it down. It is derived from yams but she explained how in its raw form that the yam progesterone can't be broken down by our bodies, so that's why they synthesize it for us... It made sense when she explained it.
On a side note, Premarin, made from the urine of pregnant mares, is an estrogen replacement therapy, and has nothing to do with progesterone or progestin.
__________________ ~Suz To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. (31) & Eli To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. (30) TTC since 10/2005 Currently taking 2000mg Metformin/day
Tried Clomid, Femara, had one miscarriage and now taking a break
while we rustle up the funds to pursue treatment with a real fertility doc.
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