Soybean oil

Information

Practical information:

• Botanical name: Glycine max
• Appearance: Clear, colorless liquid
• Odour: Light, sweet and characteristic
• Texture: Light and non-greasy, easily absorbed by the skin

Extraction process :

Soybean oil is mainly extracted by a solvent extraction method using hexane. The soybeans are first cleaned, crushed and then mixed with hexane to dissolve the lipids. The mixture of crude oil and solvent is heated to evaporate most of the solvent, then stripped to remove the last traces of solvent. Finally, the soybean oil obtained is filtered to remove impurities and solvent residues.

Benefits and Properties :

The use of soybean oil in soapmaking offers a multitude of benefits for the skin, from moisturizing and gentle cleansing to soothing irritation and protecting against external aggressors. Yet this oil is not used often enough in our home recipes. It's an oil worth discovering, as it offers a gentle and effective alternative for caring for the skin, while preserving its natural balance and providing a feeling of comfort and well-being.

Properties :
Skin hydration: Soybean oil is rich in essential fatty acids, such as linoleic acid and oleic acid, which help maintain skin hydration and strengthen the skin barrier.

1. Antioxidants: It's also rich in vitamin E, a powerful antioxidant that helps protect skin from free radical damage and prevent premature skin aging.
2. Anti-inflammatory properties: Thanks to its anti-inflammatory properties, soybean oil can help soothe skin irritations, redness and inflammation, making it a beneficial ingredient for sensitive or irritation-prone skin.
3. Improved skin elasticity: By penetrating deep into the skin, soybean oil can help improve elasticity, reduce the appearance of fine lines and wrinkles, and give skin a firmer, more toned appearance.
4. Nourishing for hair: When used on hair, soybean oil nourishes and moisturizes hair follicles, which can help strengthen hair, reduce frizz and improve shine and softness.

Composition of soybean oil:

• Monounsaturated fatty acids :
  • Gadoleic acid: 65.0 - 90.0
  • Erucic acid: 5.0 - 30.0
  • Oleic acid: 5.0 - 15.0
• Saturated fatty acids :
  • Nervonic acid: 0.5 - 5.0%.
• Other active ingredients :
  • Unsaponifiables: These compounds are renowned for their protective action on the skin and their ability to combat skin aging.

Recommended for which skin type :

• For normal to dry skin: Rich in essential fatty acids, it provides deep hydration and helps restore the cutaneous barrier, ideal for keeping skin supple and soft.
• For mature skin: the unsaponifiables present in soybean oil have anti-aging properties, helping to prevent the appearance of fine lines and wrinkles while maintaining skin elasticity.
• For sensitive skin: Its light, soothing texture is also suitable for sensitive skin, soothing irritation and redness while providing gentle, non-irritating hydration.
• For acne-prone skin: Although it may be comedogenic for some people, it can be used with caution to moisturize acne-prone skin, due to its moisturizing and soothing properties.
• For combination skin: Lightweight and non-greasy, it is also suitable for combination skin, providing balanced hydration without clogging pores.

How to store soybean oil :

• Store in a cool, dry place away from direct sunlight.
• Make sure it's securely closed.
• It generally keeps for up to 12 months after opening.

Tips and Tricks for the Soap Maker :

Discover soybean oil: an innovative solution for budding soap-makers and curious artisans. Rich in essential fatty acids, it gently moisturizes the skin while preserving its natural balance. Its light texture makes it the perfect ingredient for gentle, nourishing soaps for all skin types. Affordable and readily available, soybean oil adds a new dimension to your soap-making craft.

Unsaponifiables:

1. Vitamin E (tocopherols): A natural antioxidant, vitamin E helps protect cells against damage caused by free radicals. In soap, it can help extend shelf life by preventing the rancidity of oils.
2. Sterols (beta-sitosterol, campesterol, stigmasterol):
   • Beta-sitosterol: Has anti-inflammatory properties and can help soothe irritated skin.
   • Campesterol: Helps reduce skin inflammation and may assist in the treatment of skin conditions such as eczema.
   • Stigmasterol: Has similar properties to other sterols, helping to reduce inflammation and offering moisturizing benefits.
3. Phytosterols: Improve skin elasticity, promote repair of the skin barrier, and help moisturize the skin. Phytosterols may also have anti-aging effects, due to their ability to promote moisture retention and improve skin structure.
4. Squalene: Although present in smaller quantities in soybean oil, squalene is an excellent emollient. It helps maintain skin hydration and is quickly absorbed without leaving a greasy feel.

Its saponification value
:

The saponification value of grapeseed oil is 190, which means that 0.190 g of NAOH soda (Link to soda lye or soda pearl) are needed to saponify 1 g of soybean oil. This information will help you calculate your own recipe.

In your calculator, choose "Soya Oil" or "Huile de soja".

It is an unstable oil, and its content in your recipe should be between 5% and 15% maximum.

Tips :

Mix soybean oil with other skin-friendly oils, such as olive oil or coconut oil, to create a balanced, nourishing soap.
.

Use soybean oil in moderate quantities in your recipe. Too much oil can lead to an over-greasy soap that may be more susceptible to rapid oxidation.

If you want to increase the lather of your soap, you can add ingredients such as sugar or honey to the trace. This will help create a more abundant, luxurious foam (2% or 3% of the total weight of the oils).

Additions / Superfatting
:

Add natural antioxidants, such as vitamin E, to your recipe to help prevent oxidation and extend the life of your soap.

Soybean oil generally produces a light to medium trace during cold saponification. This means that when you mix the oils with the washing soda, the trace, which is the consistency of the mixture, becomes visible.

A light to medium trace generally makes it easy to work with the soap, pour it into molds and create designs if desired.

Mussels:

Be aware that the reaction between soda and oils can generate heat. Use our special molds and monitor the temperature throughout the process to avoid freezing your soaps.

These molds are flexible, making them easy to remove from the mold once the soap has hardened. What's more, they enable better heat retention during the saponification process, promoting optimal soap setting.

Tips and Usage for Solid Shampoo and Conditioner :

The properties of soybean oil used in solid shampoo recipes:

• Emollient: Soybean oil softens and smoothes hair, making it easier to detangle and style.
• Moisturizing: Thanks to its ability to retain moisture, it keeps hair hydrated, making it softer and more supple.
• Nourishing: The essential fatty acids found in soybean oil deeply nourish hair, helping to strengthen it and protect it from damage.
• Scalp balancer: regulates sebum production in the scalp, helping to balance oily hair and soothe itching.
• Fortifying: It strengthens the hair fiber, reducing breakage and split ends, while promoting hair growth.
• Protective: The antioxidants present in soybean oil protect hair from damage caused by external aggressors such as pollution and UV rays.

The indications and advice given above are provided for information only, based on reputable sources in aromatherapy, soap-making and phytotherapy. Under no circumstances should they be considered as medical advice. This information is not intended to replace professional medical advice, diagnosis or treatment. It is essential to consult a health professional before using essential oils or any other product mentioned. In addition, please note that the product discussed in this context is not intended for consumption.