Business Verified eBay Store Seal Watch Video Watch Video

More bird-brained behavior

Posted on August 2, 2012 by James Kohl.

Human preferences for faces are determined via their association with hormones that metabolize to pheromones, which determine the social preferences of other mammals whose interest in not in facial expression but in chemical cues of nutrient-dependent reproductive fitness.

Those who think that the development of face preferences can can be meaningfully interpreted in the context of only visual cues, place themselves firmly in an ethological world that is known to ignore the importance of olfactory/pheromonal input in some species (e.g. avian species) to further the less relevant study of audiovisual input as a primary influence on behavior.  New evidence from a study of the males of one avian species will no doubt be extended to humans during the next decade or so, as more is learned about olfaction in birds. I am, however, impatient to offer it as an example of what is wrong with basic research in the context of avian behavior.

This evidence suggests that social context regulates both sexual signaling (e.g., colorful ornamentation) and testosterone, which is typically associated with more colorful ornamentation in avian species and other species. When testosterone levels were manipulated in a social context (e.g., male competition),  changes in colorful orientation and sexual signaling appeared to be the result of increased testosterone.

Levels of sex steroids, like testosterone, metabolize to androgenic “male” pheromones in mammals, and testosterone is associated with darker complexion (a more reddish hue) of human males compared to human females. This represents an extension of testosterone dependent sexual signaling via color that can be found — with variations — in the males and females of all mammals. All of the variations can be directly linked to sex hormones and sex differences in pheromones, which are responsible for the control of reproduction in species from microbes to man.

What this means is that even in species that do not have any colorful ornamentation, the pheromones control reproduction. What that means is the evolutionary theorists cannot, without question, make the assumption that we are primarily visual creatures.  The basis for that assumption was a non-existent avian model, one that has gradually gone missing from the literature, only to leave a gaping hole in theories about the development of human behavior that fail to incorporate what’s known about the role of olfactory/pheromonal input in every other species on this planet.





James Kohl
Retired medical laboratory scientist

James Kohl

Order by Mail or FAX

Order by Mail or Fax

If you prefer to place your pheromones order by MAIL or FAX, using our printable order form, click here.

Trademarks & Notices: LuvEssentials is not affiliated in any way with WebMD, CNN, Discovery Health. All trademarks and registered trademarks appearing on LuvEssentials are the property of their respective owners.

Orders that were shipped by free USPS Mail and are returned to us will be assessed a return processing fee of $7.00 US Dollars. Orders totaling over $190.00 US Dollars, before any discount, that are returned to us will be assessed a return processing fee of 25%.

Please note, the testimonials we display are all real; however, any photos accompanying these testimonials are stock photography, not actual customers. We do this to protect the privacy of our customers.

Also, in accordance with FTC guidelines, we want to make it explicitly clear that the testimonials we display throughout this website are based on the unique experiences that some of our customers have shared with us. We cannot promise that you will experience similar benefits from using our product. If you are not satisfied with our product for any reason, simply return the product within 60 days for a full refund excluding the costs of shipping and handling. Please contact us with any questions you may have.

James Kohl owns, and he has published books and award-winning research journal articles about human pheromones. With colleagues he was the first to show that a mixture of human pheromones increases the flirtatious behaviors of women, and increases their level of attraction to the man wearing the mixture - during a real-life social circumstance lasting 15 minutes.

James Kohl was not paid for his endorsement. Nevertheless, he is an affiliate of which means it is possible for him to receive a monetary gain from the sale of LuvEssentials products based on how the visitor arrived at our site.

For testimonials of LuvEssentials products, please visit our testimonials page here or our ebay reviews page here.

To contact us, please click here

Contact Us

Please complete the following form to contact us; we will reply within one business day.
Business days are Monday through Friday, 9:00 AM to 5:00 PM, EST
The information you are providing here will not be sold or disclosed to any outside party.
(* indicates required fields)

Please contact us by:



Lodix Corporation
138 Palm Coast Parkway N.E.
Suite 192
Palm Coast, FL 32137

What is the vomeronasal organ (VNO)?

The vomeronasal organ (VNO) is a cone-shaped organ in the nasal cavity, which is believed to be one of the body's receptors of pheromones. More, specifically, the VNO, which is part of the accessory olfactory system in the nose, does not respond to normal scents, but may detect odorless, barely perceptible pheromones.

Other schools of thought believe that it is not the VNO but rather cells in our main olfactory system and their affects on hormones secreted by the hypothalamus that are responsible for the affects of pheromones.

Learn more about the science behind pheromones here.

What are optimized pheromones?

Optimized pheromones are lab-certified pheromone formulations that have the optimum concentration of biologically active pheromones scientifically proven to produce behavior-altering results -- particularly as sexual attractants. Optimized pheromone formulations do not necessarily contain the maximum level of pheromones available on the market, but rather contain the greatest degree (and combination)of human pheromones that trigger a conditioned biological response in humans that, in turn, dictate their sexual behavior. Optimized pheromones also release neurotransmitters that directly modify the behavior of the opposite sex, such as triggering sexual excitement. For example:

Optimized pheromones for men are scientifically proven to bring about an increase in the luteinizing hormone (LH) in women, thereby causing a woman to have a heightened sexual responsiveness to a man. This LH surge elevates a woman's predisposition towards sexual activity.

Optimized pheromones for women are scientifically proven to bring about a biochemical surge in men, thereby causing a man to have a heightened sexual responsiveness to a woman. This biochemical surge is what makes a man fiercely determined to copulate.