I'm a stylist. Greasiness is due to oiliness in the scalp, that sudden change can be due to hormones and will likely change back in a few months. What often happens is, you have a very dry scalp and the lack of good scalp care has caused the oil glands to overproduce oil to overcompensate. Here is more info on that, and some excellent advice on how to correct the oily scalp problem:
http://www.suite101.com/content/oily-hair-care-tips-a18839
"A common misconception about oily hair is that it is caused by an oily scalp. The exact opposite is usually true. A dry scalp causes the oil glands in the scalp to produce more oil, and once on the scalp, this excess oil transfers to the hair itself. Therefore, to treat oily hair, one of the best things to do is focus on the dry scalp.
Below, you will find some hints and tips to help manage and care for oily hair:
* Use a mild shampoo, shampoo for oily hair, shampoo for dry scalp, or a baby shampoo
* Wash oily hair daily, but concentrate the shampoo on the hair away from the scalp to remove the excess oil from the hair, not on the scalp itself, because this can dry the scalp even more
* Always rinse your hair thoroughly with cool or lukewarm water, because soap residue can make oily hair worse
* Use a hot oil treatment directly on the scalp itself, gently massaging the oil into the scalp and then rinsing the oily hair thoroughly afterward
* If hair is very oily, do not use conditioner at all, or use conditioner only on the tips or ends of the hair
* Oily hair is likely shiny enough, so avoid using hair gloss gel or shine hair care products on oily hair
* For extremely oily hair, a vinegar rinse, comprised of one (1) part vinegar to four (4) parts water can help remove oil from your hair, but be sure to avoid using vinegar on the scalp
* Don’t brush oily hair frequently, because brushing oily hair can actually cause the scalp to produce more oil
* Don’t rub or scratch your scalp when you have oily hair, because stimulating the scalp like this can produce more oil
* Diluted lemon juice can provide similar results to the vinegar rinse for oily hair with a much more pleasant scent
Shampoo that contains tea tree oil can work well for alleviating dry scalp, if dry scalp is the primary cause of the oily hair. While diet has little affect on hair itself, eating a healthy diet and drinking plenty of fluids can help with dry skin and scalp too, and since dry scalp causes oil product that can lead to oily hair, diet can affect how much oil your scalp produces. Drinking water is not only good for your oily hair and dry scalp, but it's also great for your skin health too."
I'm one of those that cannot go a day without washing, makes me so jealous when I do women's hair and it still looks good a few days without washing.
In any case, Body by Sebastion is a good volumizing product for fine hair.
Make sure that whatever product you are using, it isn't a heavy, deep conditioner. Oftentimes, volumizing products just add more bulk and gunk to the hair, which is why many of those volumizing products don't work.
This is some expert advice that is well written, so I'm just going to copy and paste it here:
"Many people mistakenly think that shampoo is to wash the hair and not the scalp. Actually, shampoo is designed to clean the scalp and beautify the hair. Thus, my first recommendation is to focus your shampoo on your scalp.
The key to controlling oily hair is to keep the PH balance correct with the right shampoo, and remove the sebum adequately from your scalp. To do this you need a shampoo that will tell you when this has been accomplished. A sulfate free shampoo will not foam when it is removing large amounts of sebum. It will only foam when you have removed everything that needs to be removed. If you have long hair you should apply the shampoo to the scalp without piling the hair on top, and use your fingers to vigorously massage your scalp. Excessively oily hair always requires two shampoos, sometimes three. The way to tell if the oil has been removed from the scalp is to note the foam produced by the shampoo. You can discontinue shampoo applications when the shampoo
freely suds, then work it to the ends of your hair.
If you need to Wash you hair daily for frequent sebum removal then do so, and do not use a conditioner on your scalp. Sebum is a wonderful conditioner, and additional products are not needed. Any conditioner applied to the scalp will only increase the speed with which oil is produced. You should only use a conditioner at the ends of your hair where it is driest, and keep it off of your scalp.
You also want to be careful that you are not drying out your scalp. Shampooing too frequently and overly hot water will dry out your scalp. This will cause your oil glands to compensate by overreacting and producing more oil. If you have hard water, you will need to use a clarifying shampoo once a week. Hard water deposits minerals that will eventually clog the follicles on your scalp, thus causing it to overreact the same way. You may find that shampooing daily will become unnecessary once you begin to correctly shampoo with the right product.
Another habit that may increase the appearance of oily hair is frequent brushing. Combing and brushing aid in the movement of sebum from the scalp down the hair shaft. The hair should be handled as little as possible.
Hair styling products when used on the scalp will block the hair follicle and cause it to become overactive to try to remove the blockage, so don't use
moose, gel, or spray where it can sit on your scalp.
So get in the habit of shampooing at least twice, only use conditioner on the ends, or the dryer parts, and don't over brush your hair.
The products that I recommend for you are Enjoy Sulfate Free Shampoo, Enjoy Clarifying Spray, and Zerran Moisture Pak Conditioner.
http://askville.amazon.com/shampoo-oily-scalp/AnswerViewe...
