Make your own DeodorantDPG or otherwise know as Dipropylene glycol is a fragrance fixative as well as a humectant. DPG ingredient will keep your fragrance around all day. PG otherwise known as Propylene glycol can be used in place of DPG if you do not have it.
Items needed, 80% dipropylene glycol, 8% sodium stearate, 6% witch hazel, 2% aloe vera extract, 2% turkey red oil (sulfonated castor oil - emulsifier), 1% essential or fragrance oil, 1% polysorbate 20 1) Weigh the dipropylene glycol and sodium stearate in a heatproof container
2) Heat until the sodium stearate is melted.
3) Add the witch hazel, aloe vera, and turkey red oil (optional) and mix until fully blended.
4) Mix the polysorbate 20 and essential or fragrance oil in a small container, and add it to the mixture after you remove it from the heat.
5) Pour into a deodorant container and let sit until solid.  You can try different fragrances such as, tea oil tree or green bamboo fragrance oil.
Polysorbate 20 will make it sticky, so you will need to add a detackifier and glide enhancer!  Try a PEG or Crodamol PMP at 2% in place of the turkey red oil. Tinosan at 0.3% twill offer some anti-bacterial and preserving properties.  Also, Polysorbate 20 in the mix as the water soluble ester will help solubilize the fragrance oil.

One suggestion is including 2% Iamolin in place of water.  It is water soluble ester and to add some emolliency. If you don't have witch hazel or aloe vera substitute hydrosol, alcohol, or water.

How to Make Reed Diffusers

Add 6 parts Dipropylene glycol to 4 parts essential oil.

Dipropylene glycol is a byproduct of the propylene glycol. It works well as a solvent of essential and commonly used with fragrance oils. Dipropylene glycol is not acutely toxic by oral, dermal, or inhalation exposure. It is also a common ingredient in commercial fog fluid, used in entertainment industry smoke and haze machines.

How to Make Square Reed Diffuser with Citrus Recipe

1) Add 1/2 cup plus 2 Tablespoons Dipropylene Glycol
2) Add 1/4 cup Lime Essential Oil
3) Add 1 Tablespoon Litsea Essential Oil
4) Add 3 Tablespoons Orange 5 Fold Essential Oil
5) Pour into Square Diffuser Bottle
6) Add reeds and use.

How to Make Round Reed Diffuser with Well Being Essential Oil Blend

1) Add 1/2 cup Dipropylene Glycol
2) Add /4 cup plus
3) Add 3 Tablespoons of Well-Being Essential Oil Blend

How to Make Cedar Oil

If you want to clean your house with natural products, try this formula.  By adding natural essential oils into the solutions to will add natural fragrances through out your home.

1)  Add 2 oz. of cedar wood oil into the bottle through a funnel
2)  Add 1 oz. of balsam fir essential oil into the bottle
3)  Add 4 oz. of dipropylene glycol into the bottle
4)  Mix well or shake.

Source: DiPropylene Glycol

E-Cig Propylene Glycol

E-cig Propylene Glycol users formulate there own flavors with propylene glycol for use in e-cig.  USP propylene glycol is packaged to meet FDA regulations. Labeling a product or a substance as USP implies that it conforms to all the legal requirements of the FDA and that it was produced in accordance with the principles outlined in FDA’s Good Manufacturing Practices (GMP). 

Many other nations also have compiled an official national pharmacopeia, similar in scope and content to the USP. Currently, there is a collaborative international program to harmonize the glycerin monographs in the USP and in the European Pharmacopeia.

Propylene Glycol USP is approved as a food, beverage, and medical applications. In order to use Propylene Glycol in food and medical applications, the product must be labeled USP. USP designation means the product conforms to FDA and USP labeling and packaging requirements. Per the requirement of USP packaging, this product has been packaged in a clean room environment and in decontaminated containers. The certificate of analysis on all of our Propylene Glycol USP is 99.9%. You can also download the Kosher certificate and MSDS from this page.