What Is the 4-2-4 Rule in Skincare? The Deep Cleansing Guide | Rysun Biotech

Wondering "What is the 4 2 4 rule in skincare?" It is a 10-minute deep cleansing method. Learn the steps and why Rysun Biotech’s high-purity cleansing oils and foams are perfect for this routine.

What Is the 4-2-4 Rule in Skincare? A Scientific Guide to the Ultimate Deep Cleanse

Introduction
In the world of skincare trends, K-Beauty (Korean Beauty) often leads the way. Recently, a specific cleansing technique popularized by celebrities like Suzy has taken the internet by storm. Consumers are flooding search engines asking: "What is the 4 2 4 rule in skincare?"

Is spending 10 minutes washing your face actually beneficial?

At Guangzhou Rysun Biotechnology, we analyze these trends through the lens of formulation science. Founded in 2014 by Ivy Wong to address "inconsistent quality" in the market, and inspired by insights from a Swiss anti-aging expert, we know that deep cleansing is the foundation of healthy skin. However, prolonged cleansing requires high-quality products to avoid irritation.

Backed by our Research Institute and 20 leading scientists, here is the comprehensive guide to the 4-2-4 method and the chemistry required to make it work.

Defining the Method: The Breakdown

The 4-2-4 rule is a specific double-cleansing regimen designed to thoroughly remove makeup, oil, and debris without stripping the skin. It refers to the minutes spent on each step.

Step 1: 4 Minutes of Oil Cleansing

• The Process: Massage a hydrophilic cleansing oil onto dry skin for exactly 4 minutes.
• The Science: "Like dissolves like." The oil cleanser dissolves hardened sebum (blackheads), sunscreen, and waterproof makeup. The 4-minute massage improves circulation and ensures every pore is flushed.
• The Rysun Formulation: This step is risky if the oil is heavy or comedogenic. Rysun manufactures lightweight, emulsifying oils. Using our 253 intellectual properties, we create oils that provide "slip" for the massage but turn into a milky fluid instantly upon contact with water, rinsing away cleanly without clogging pores.

Step 2: 2 Minutes of Foam Cleansing

• The Process: Layer a water-based foam cleanser on top and massage for 2 minutes.
• The Science: This removes the oil residue and sweat.
• The Rysun Formulation: Massaging a harsh soap for 2 minutes will destroy the skin barrier. Rysun focuses on Practical Solutions. We formulate foam cleansers with gentle amino acid surfactants that clean effectively without raising the skin's pH, ensuring the barrier remains intact even during a long wash.

Step 3: 4 Minutes of Rinsing

• The Process: Rinse with lukewarm water for 2 minutes, followed by cold water for 2 minutes.
• The Science: The warm water ensures all product is removed; the cold water helps constrict surface capillaries (reducing redness) and tighten the appearance of pores.

Is It Safe for Everyone?

While effective, the 4-2-4 method is intense.

• Oily/Acne-Prone Skin: This method is excellent for unclogging pores, provided the oil cleanser is non-comedogenic (a standard Rysun guarantees).
• Dry/Sensitive Skin: 10 minutes of cleansing can be drying. Rysun advises brands to market this as a "Weekly Detox" rather than a daily routine for sensitive skin types.

The Manufacturer’s Role: Why Ingredients Matter

If a consumer asks "What is the 4 2 4 rule in skincare?" and tries it with low-quality products, they will likely experience breakouts or irritation.

Rysun Biotechnology ensures the method works by focusing on purity:

• Emulsification Technology: The success of the "4 minutes of oil" depends on the oil rinsing off completely. Rysun’s R&D team has perfected the "Rapid Emulsification" system, ensuring no greasy residue is left behind to cause acne.

• Strict QC: Massaging a product into your pores for 10 minutes means any impurity penetrates deep. Our 50 inspection procedures ensure our cleansers are free from contaminants, making them safe for prolonged contact.

• Swiss-Inspired Protection: We infuse our cleansers with barrier-supporting ingredients (like Vitamin E or Centella) so the skin is nourished while it is cleaned.

Conclusion

So, what is the 4 2 4 rule in skincare?
It is a rigorous detox for the pores consisting of Oil (4 min), Foam (2 min), and Rinse (4 min).

For brand owners, this trend represents a massive opportunity to sell "Double Cleansing Sets." At Rysun Biotechnology, we have the expertise to manufacture the high-performance cleansing oils and gentle foams required to make this routine a success. Partner with us to bring the art of the deep cleanse to your product line.

FAQs

Q1: Can I use coconut oil for the 4-minute massage?
A: No. Pure coconut oil is highly comedogenic (pore-clogging) and does not rinse off with water. You must use a formulated cleansing oil with emulsifiers. Rysun manufactures these specifically to rinse clean.

Q2: Should I do the 4-2-4 rule every day?
A: For most people, doing this every night is too time-consuming and potentially stripping. Rysun recommends marketing it as a routine for 2-3 times a week, or whenever heavy makeup is worn.

Q3: Can I use a gel cleanser instead of foam for the "2 minutes"?
A: Yes. Rysun manufactures both. Gel cleansers are often better for dry skin, while foams are preferred for oily skin. The key is that it must be water-based.

Q4: Does Rysun test its cleansers for eye safety?
A: Yes. Since the 4-2-4 method involves massaging the eye area to remove mascara, Rysun conducts rigorous testing to ensure our formulas are low-irritation and safe for ocular use.