Cold Process vs. Hot Process: How Do They Affect Your Skin?

Introduction
What is cold process soap?
What is hot process soap?
The difference between cold process and hot process manufacturing methods
Differences in effects on the skin
Cold process soap is recommended for the following people
Best-selling product introduction

1. Introduction

Washing your face is the most basic step in daily skincare. The choice you make has a huge impact on your skin, so it's important to understand the differences in manufacturing methods when choosing a soap. Soap is generally made using two methods: cold process and hot process, each with its own characteristics and benefits.

In this article, we'll take a deep dive into the differences between cold process and hot process soap making and how they affect your skin. Learn the pros and cons of each method and make the best choice for your skin.

2. What is cold process soap?

The greatest feature of cold process soap is that it is made without the addition of heat, so the beauty ingredients contained in oils and plants remain intact. This method involves reacting fats and oils with alkaline sodium hydroxide (caustic soda), and using the heat from the reaction to make soap. This means that the natural moisturizing ingredient glycerin and beauty ingredients are trapped in the soap without destroying the unique characteristics of the ingredients.

Features:

Rich in nutrients : The ingredients in oils and plants remain intact, making it gentle on the skin.
Aging Required : After the soap is finished, it needs to be aged for a few weeks to a few months. This allows the soap to harden and lather better.
Gentle on the skin : No heat is used, so the moisturizing properties of the oil are maximized, resulting in a gentle finish on the skin.

Cold process soap is especially recommended for those with dry or sensitive skin, and is also effective for anti-aging care as it moisturizes and supports the skin's barrier function.

3. What is hot process soap?

Hot process soap is a method of adding heat during the manufacturing process. In this method, oils and alkali are reacted at high temperatures, and soap is completed in a relatively short time. However, because it is heated at high temperatures, the oils are prone to oxidation, and because glycerin is removed, the soap may have poor moisturizing properties.

Features:

Fast production : High temperatures are used during production, and soap is ready in just a few hours.
Relatively weak moisturizing power : Moisturizing ingredients can be lost due to heat.
High cleaning power : Many soaps have a relatively high proportion of soap base and have excellent cleaning power.

Hot process soap is suitable for mass production and is relatively inexpensive to purchase. It is suitable for oily to normal skin and is recommended for those who want a relatively light feel.

4. Differences between cold process and hot process manufacturing methods

The main difference between cold process and hot process is the addition of heat , which has a huge impact on the final soap.

Cold Process Soap Features:

Long production time : The soap requires a ripening period of several weeks to several months to be completed.
Ingredients are less likely to break down : The nutrients contained in oils and plants remain intact, making it gentle on the skin and highly moisturizing.
Natural and gentle on the skin : Contains many natural ingredients, making it ideal for anti-aging care.

Hot Process Soap Features:

Short production time : High temperatures are used during production, and the soap is ready in just a few hours.
Relatively weak moisturizing power : Moisturizing ingredients can be lost due to heat.
High cleaning power : Many soaps have a relatively high proportion of soap base and have excellent cleaning power.

5. Differences in effects on the skin

The manufacturing process has a big impact on the skin.

Effects of Cold Process Soap on Skin:

Cold process soap is especially recommended for those with dry or sensitive skin, as it leaves the moisturizing beauty ingredients of the ingredients intact. It keeps the skin moist and hydrated, so it leaves your skin feeling moisturized without any tightness after washing.

Ideal for dry and sensitive skin : Mild and gentle on the skin.
Highly moisturizing : Moisturizing ingredients remain intact, protecting the skin from dryness and supporting its barrier function.

Effects of Hot Process Soap on Skin:

Hot process soaps have strong cleansing power and are suitable for both oily and normal skin. They are characterized by a light feel and are recommended for those who want a refreshing wash.

Suitable for oily and normal skin : Lightweight and non-greasy.
Not suitable for dry skin : Moisturizing ingredients tend to decrease, so it is not suitable for those who are concerned about dryness.

6. Cold process soap is recommended for these people

Cold process soap is known for its rich nutrients and moisturizing ingredients, and is especially recommended for the following people:

1. Those with dry skin

Cold process soap is packed with natural moisturizing ingredients to prevent dryness. After washing your face, your skin will be moisturized and will remain hydrated without feeling tight.

2. People with sensitive skin

Cold process soap is made using only natural ingredients, so you can avoid chemical ingredients and use it with confidence as it is less irritating to the skin.

3. Those who want to prioritize anti-aging care

Many of the ingredients in cold process soap contain antioxidants, making them effective for anti-aging care. They help prevent fine wrinkles and loss of skin elasticity caused by dryness, keeping skin healthy.

4. Those who want to support the skin's barrier function

Cold process soap is also ideal for those who want to strengthen their skin's natural barrier function and protect it from external stimuli. The moisturizing ingredients strengthen the skin's defenses, leading to healthy skin.

7. Bestselling product introduction

We've compiled a list of our most popular and bestselling cold process soaps to help you find the perfect product for your skin.

1. Goat's Milk & Pear (Body)

This body soap combines the moisturizing power of goat's milk with the fresh scent of pear to moisturize dry skin and leave it smooth.

Price: ¥2,580 (tax included) ~
[Goat's Milk & Pear (Body) Product Page]
https ://thecoldprocess .tokyo /collections /best -seller /products /goat -milk -pear -body

2. Honey & Shea Butter (Face)

Rich moisture from honey and shea butter protects skin from dryness. Gently conditions skin, leaving it feeling moisturized for a long time.

Price: ¥2,580 (tax included) ~
[Honey & Shea Butter (Face) Product Page]
https ://thecoldprocess .tokyo /collections /best -seller /products /honey -shea -butter -face

3. Herb & Argan Oil (Face)

Herbs and argan oil moisturize the skin, bringing out its natural beauty. The ingredients are gentle on sensitive skin, protecting and conditioning the skin.

Price: ¥2,580 (tax included) ~
[Herb & Argan Oil (Face) Product Page]
https://thecoldprocess.tokyo/collections/best-seller/products/herb-argan-face

4. Whisk net

This foaming net is perfect for use with cold process soap. It creates creamy lather easily and cleanses your face gently without irritating your skin.

Price: ¥990 (tax included)
[Foaming net product page]
https://thecoldprocess.tokyo/collections/best-seller/products/whipping-net