# TAC vs TAA: what's the difference, and can they be combined with P74? **URL:** \ **Category:** Men's Pheromone Advice & Field Reports\ **Created:** [December 1, 2008, 4:56am UTC](https://pheromonetalk.com/t/tac-vs-taa-whats-the-difference-and-can-they-be-combined-with-p74/23457 "2008-12-01T04:56:46Z")\ **Posts on this page:** 1\ **Showing post:** 27
**Author:** ![Warren](https://avatars.discourse-cdn.com/v4/letter/w/97f17d/32.png) [@Warren](https://pheromonetalk.com/u/Warren)\ **Post date:** [October 31, 2009, 7:38pm UTC](https://pheromonetalk.com/t/tac-vs-taa-whats-the-difference-and-can-they-be-combined-with-p74/23457/27 "2009-10-31T19:38:33Z")
Optimizing [P75](https://a314.com/product/p75/) levels **Optimizing P75 levels** I think it is well established that too much P75 can easily give most people over dose symptoms including headaches. I have found that long before I get what I’d call over dose levels I am wearing more P75 than is optimum for my relationships with others. This is [documented elsewhere](https://pheromonetalk.com/t/p75-im-a-man/26881). I expect that there are many men who are enjoying wearing levels of P75 that actually degrade their relationships. When you are too satisfied within yourself, you tend to pay less attention to the details of your environment and the people in it. This is a classic symptom of over-confidence. On the other hand, P75 adds an important grounding effect to TAC, especially when TAC is mixed with TAA, as [discussed above](https://pheromonetalk.com/t/tac-vs-taa-including-p74-p124-effects/23457). I tend to be sensitive TAC and get very bad effects when I mix it with TAA, unless I include enough P75. Finding the correct level of P75 to add to a mix including TAC and TAA has been very difficult for me. Erring just a little on either side can have disastrous social consequences. It seems every time I try to mix these three in even a slightly different way that I wind up learning something “the hard way”. Having a simple rule of thumb or gut feel for the right amount of P75 has just not worked for me. I have come up with a mathematical equation to determine the proper amount of P75. I am not usually all so mathematical, but I am pretty excited about this formula. It fits well my experience with TAC, TAA and P75 so far. mcg of P75 needed = 0.5 _(mcg of TAC / 10)_ (1 + (mcg TAA / 12.5)) If you’re not that mathematically inclined, relax, it’s not that complicated. It says for each 10mcg spray of TAC, you use 0.5mcg of P75. If you add a 12.5mcg spray of TAA, double the P75; if you add two 12.5mcg sprays of TAA, triple the P75… I don’t know how well this will hold up for me over the long run, but it does seem to summarize what worked best in my many tests of TAC, TAA and P75 up to this point. I don’t know how well it will fit other people’s needs, but if you are sensitive to TAC or TAC with TAA, it is probably a good place to start. In fact, if you are not sensitive to TAC, it could be an even better beginner’s tool because you won’t notice as dramatically when you overshoot or undershoot the optimum dose of P75. --- _[View the full topic](https://pheromonetalk.com/t/tac-vs-taa-whats-the-difference-and-can-they-be-combined-with-p74/23457)._