Image Source: Craftology Essentials
INCI Name: Vitis vinifera (Grape) Seed Oil
Source: Seeds
Types:
Refined / Unrefined
Color: Light
yellowish-green
Aroma: Very
faint odor
Viscosity: Thin
Absorption: Fast
Comedogenic Rating: 2
Shelf Life: 3 to 6 months (if stored in cool, dry place and
away from direct sunlight)
SAP Value (for soap making): 180 - 200 (mg KOH), NaOH = 0.135 (g, oz or lb),
KOH = 0.19 (g, oz or lb)
Ideal for which skin type: oily/acne prone
Fatty Acid Profile (in %):
Linoleic Acid
|
69.6
|
Oleic Acid
|
15.8
|
Alpha Linolenic Acid
|
0.1
|
Palmitic Acid
|
7
|
Stearic Acid
|
4
|
Others
|
3.5
|
Table Source: https://en.wikipedia.org/wiki/Grape_seed_oil
Grapeseed
oil (also known as grape oil) is extracted from the seeds of grapes. It is
actually a by-product of the wine making process. After the grapes are pressed
to get the juices for making wine, the seeds that are left behind from this
process are used to extract the oil.
Grapeseed
oil is a popular choice of base oil for making massage oil due to its
lightweight, non-greasy consistency. It absorbs fast to the skin but still
gives enough time to do the actual massaging. It is also a great carrier oil to
use for making essential oil blends because it’s almost odorless and cheaper
than fractionated coconut oil (another popular carrier oil used by
aromatherapists).
Due
to its high linoleic acid (omega-6 essential fatty acid) content, grapeseed oil
is ideal for people with oily and/or acne prone skin. Its astringent and
anti-inflammatory properties help cleanse and tighten the pores, as well as
reduce skin inflammations (e.g. pimples). Moreover, grapeseed oil has a
comedogenic rating of 2 which is moderately low and still considered as
non-comedogenic. All of these properties make grapeseed oil an important
ingredient when making facial serum that balances sebum production and reduces
the chance of acne breakouts.
Aside
from facial serum, grapeseed oil is also great as a hair serum. It can soften,
moisturize and add shine to the hair without weighing the hair down and feeling
sticky.
Grapeseed
oil can either be refined or unrefined, cold-pressed or solvent-extracted.
It’s best to buy cold-pressed, unrefined grapeseed oil to get the most of its
skin-loving properties. In terms of smell and color, there really isn’t that
much difference between refined and unrefined grapeseed oil. The only advantage
of refined grapeseed oil is longer shelf life. On the other hand, unrefined
grapeseed oil has a very short shelf life of 3 – 6 months and it doesn’t help
that it only has little amount of Vitamin E to help slow down its rancidity
rate. In order to extend its shelf life a little bit, you may add 0.5% vitamin
E to your grapeseed oil and store it in the refrigerator. Nevertheless, try to
buy the smallest bottle of grapeseed oil if it’s for personal use since it goes
rancid so quickly. Also, if you’re going to sell cosmetic products containing
grapeseed oil then take note that it could affect the overall shelf life of the
product itself.
References:
All
About Grapeseed Carrier Oil. Retrieved from https://www.newdirectionsaromatics.com/blog/products/all-about-grapeseed-carrier-oils.html
Saponification
Chart. Retrieved from https://www.fromnaturewithlove.com/resources/sapon.asp
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