[msnewboobies]

After further research, I found out that the above study done on the MacaGO femmenessence product was conducted by the original doctor behind MacaGO -- in other words, their own company did the study (which I was thinking beforehand) which means the info should be taken with a grain of salt! But a BIG grain of salt I guess.

I found this research done specifically on the Lepidium Meyenii
Ethnobiology and Ethnopharmacology of Lepidium meyenii (Maca), a Plant from the Peruvian Highlands
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3184420/
It says:
"In 2005 appeared the first publication indicating that different maca color types have different properties [20]. More recently, it has been found that maca colors associate with variations in concentrations of distinct bioactive metabolites [19, 21]. These compounds individually or acting in synergy may be acting favoring the reported biological properties from maca."
So the femmenessence does seem to work BECAUSE it is a researched blend of different colors/types of maca.
That being said, if you want a proven and sure way to alter your hormones, I would go with the femmenessence. Otherwise, I THINK the other forms, as long as they are organically grown and properly grown, they should work but maybe not as well (?).
The article also states:
"The process of preparation of maca is important to obtain adequate biological effects."


Estrogen
The study does say:
"Serum estradiol levels were not affected in different studies which used mice [50], rats [16, 45], or humans [51]. Moreover, with an in vitro assay in our laboratory, we could not show that maca has a proliferative effect on MCF-7 cells [Vaisberg and Gonzales, unpublished observations]."

Memory and Learning
"In summary, different evidences suggest that maca, particularly black maca, improves learning and memory."

Sexual Function
"In summary, there is evidence that maca may improve sexual desire but is inconclusive an effect on erectile function."

Energizer
"In summary, scientific evidences suggest that maca may be an energizer."

TL;DR
So basically, it depends on your ultimate goals as for which maca you should take. I would definitely take the femmenessence if you are actively seeking to change your hormones and check out the study results above (I think it's the naturalhi link or something like that).
But I personally think maca works by supplementing loads of amino acids, fatty acids, and other nutrients to the body that help the adrenal axis and this is what makes the body balance hormones AND contributes to booby growth since amino acids are super important for HGH.

"Maca contains amino acids (mg/g protein) like leucine (91.0 mg), arginine (99.4 mg), phenylalanine (55.3 mg), lysine (54.3 mg), glycin (68.30 mg), alanine (63.1 mg), valine (79.3 mg), isoleucine (47.4 mg), glutamic acid (156.5 mg), serine (50.4 mg), and aspartic acid (91.7 mg). Other amino acids present but in less proportion are histidine (21.9 mg), threonine (33.1 mg), tyrosine (30.6 mg), methionine (28.0 mg), hydroxyproline (26 mg), proline (0.5 mg), and sarcosine (0.70 mg). Minerals reportedly found in maca were iron (16.6 mg/100 g dry matter), calcium (150 mg/100 g dry matter), copper (5.9 mg/100 g dry matter), zinc (3.8 mg/100 g dry matter), and potassium (2050 mg/100 g dry matter) among others (see [5])."
Bold items are especially important for HGH production and zinc and magnesium are important for hormone function!

Hope this info is helpful to someone!