New Formulation for Wrinkles: Development of "Unevenness Fit Veil Technology"
Pola Chemical Industries, responsible for the R&D of the Pola Orbis Group, has developed "Unevenness Fit Veil Technology" to evenly distribute and retain the moisture of lotions on the unique uneven structure of wrinkled skin. By applying its proprietary nano-emulsion technology, it aims to create a "moisture veil" that adheres even to the sides of wrinkle grooves.
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- 📰 Published: May 15, 2026 at 20:00
- 🔍 Collected: May 15, 2026 at 11:32
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Pola Chemical Industries, Inc. (Headquarters: Yokohama, Kanagawa; President: Takayuki Katagiri), which handles research, development, and production for the Pola Orbis Group, has focused on the characteristic uneven structure of wrinkled skin to develop "Unevenness Fit Veil Technology," which allows the moisture of lotion to spread throughout the entire skin and remain stable. Addressing the issues where thin lotions tend to accumulate at the bottom of unevenness and thick lotions have difficulty penetrating inside, the company aimed to form a "moisture veil" that adheres even to the sides of wrinkle grooves by applying its proprietary, well-absorbed nano-emulsion technology.
## The unevenness of wrinkles can easily become "blind spots" for moisturization.
It is known that one cause of wrinkle formation is the loss of skin flexibility due to dryness, making moisturization an important factor in wrinkle care. On the other hand, there are many cases where people feel that "dryness remains in areas where wrinkles are a concern," even when using high-moisture lotions. This is due to the characteristic of wrinkled skin where the surface's complex unevenness makes it difficult for lotion to "spread, penetrate, and stay." Thin, low-viscosity lotions tend to flow to the bottom of the unevenness immediately after application, making it difficult to spread evenly over the entire skin surface and causing them to accumulate at the bottom of wrinkle grooves (= difficult to stay on the sides). This can lead to partial "moisture gaps." Meanwhile, thick lotions, while spreading easily on the skin surface, have the problem of not easily penetrating into the unevenness (Figure 1).
## Formulation design to deliver to every corner of the unevenness.
In this research, we aimed to realize "Unevenness Fit Veil Technology," which allows lotion to reach every corner of the complex unevenness of wrinkled skin and retain moisture. We worked on a formulation design based on a thick lotion that balances ease of spreading on the surface, penetration into unevenness, and adhesion to the sides.
## Penetrating unevenness and adhering to the sides with nano-emulsion x polymer.
This technology enhances skin compatibility by incorporating nano-emulsion technology (Supplementary Material 1), which micronizes oil agents, designing a thick yet penetrating formula that reaches deep into the unevenness. Furthermore, by combining it with a polymer that has a lipophilic group (*1), it creates a structure that adheres to the sides of wrinkle grooves and retains a moisture veil (Figure 2). This is expected to evenly distribute the lotion and retain moisture, addressing the issue of uneven moisturization that was previously common in areas with unevenness.
*1 Lipophilic group: A part that has an affinity for oil.
## Confirmed behavior of "spreading, penetrating, and adhering" to uneven shapes.
As a result of verification using model materials, it was confirmed that the lotion incorporating "Unevenness Fit Veil Technology" not only spreads on the surface but also penetrates into the unevenness and adheres to the sides (Supplementary Material 2). Pola Chemical Industries will utilize this technology in future research and development as a formulation option to address the moisturization challenges of wrinkled skin.
**[Supplementary Material 1] About Nano-emulsion**
Nano-emulsion is an emulsion with fine particle diameters of about 20-200 nm. By finely dispersing oil agents in a water-based formulation, it is expected to provide an emollient effect derived from the oil agent (softening the skin and giving it a moist feel) and to facilitate the delivery of functional oil agents to the stratum corneum, all while maintaining the fresh feel of a lotion. Therefore, it is utilized as a technology that makes it easier to design experiential values such as a high sense of moisture, skin plumpness, and a smooth texture compared to lotions based mainly on water-soluble moisturizers.
On the other hand, it is known that the state of nano-emulsion changes significantly depending on the manufacturing method. Even with the same composition, stability and particle state change depending on the production conditions (Figure 3). This research applied the "special nano-emulsion manufacturing method (*2) that controls the dissolved state of surfactants," which has been established at Pola Chemical.
*2 "Successfully Stabilizing Oil in Water by Minimizing its Size: Improved Permeability of Functional Oils through the Establishment of a Special Nano-emulsion Manufacturing Method" (Issued March 13, 2024) https://www.pola-rm.co.jp/pdf/release_20240313_2.pdf
**[Supplementary Material 2] Skin compatibility and unevenness fit effect by nano-emulsion x polymer**
To evaluate the skin compatibility effect of the nano-emulsion formulation, the contact angle when dropped on artificial leather was measured as an index of skin compatibility, confirming an improvement in affinity (Figure 4).
Furthermore, the fit to unevenness was evaluated using a groove side model and a fine unevenness model. The results showed that the lotion with the Unevenness Fit Veil Technology, which combines nano-emulsion and a polymer with a lipophilic group, adheres to the side (sloped surface) while reaching the bottom (Figure 5), and penetrates inside the unevenness modeled after wrinkled skin.
## The unevenness of wrinkles can easily become "blind spots" for moisturization.
It is known that one cause of wrinkle formation is the loss of skin flexibility due to dryness, making moisturization an important factor in wrinkle care. On the other hand, there are many cases where people feel that "dryness remains in areas where wrinkles are a concern," even when using high-moisture lotions. This is due to the characteristic of wrinkled skin where the surface's complex unevenness makes it difficult for lotion to "spread, penetrate, and stay." Thin, low-viscosity lotions tend to flow to the bottom of the unevenness immediately after application, making it difficult to spread evenly over the entire skin surface and causing them to accumulate at the bottom of wrinkle grooves (= difficult to stay on the sides). This can lead to partial "moisture gaps." Meanwhile, thick lotions, while spreading easily on the skin surface, have the problem of not easily penetrating into the unevenness (Figure 1).
## Formulation design to deliver to every corner of the unevenness.
In this research, we aimed to realize "Unevenness Fit Veil Technology," which allows lotion to reach every corner of the complex unevenness of wrinkled skin and retain moisture. We worked on a formulation design based on a thick lotion that balances ease of spreading on the surface, penetration into unevenness, and adhesion to the sides.
## Penetrating unevenness and adhering to the sides with nano-emulsion x polymer.
This technology enhances skin compatibility by incorporating nano-emulsion technology (Supplementary Material 1), which micronizes oil agents, designing a thick yet penetrating formula that reaches deep into the unevenness. Furthermore, by combining it with a polymer that has a lipophilic group (*1), it creates a structure that adheres to the sides of wrinkle grooves and retains a moisture veil (Figure 2). This is expected to evenly distribute the lotion and retain moisture, addressing the issue of uneven moisturization that was previously common in areas with unevenness.
*1 Lipophilic group: A part that has an affinity for oil.
## Confirmed behavior of "spreading, penetrating, and adhering" to uneven shapes.
As a result of verification using model materials, it was confirmed that the lotion incorporating "Unevenness Fit Veil Technology" not only spreads on the surface but also penetrates into the unevenness and adheres to the sides (Supplementary Material 2). Pola Chemical Industries will utilize this technology in future research and development as a formulation option to address the moisturization challenges of wrinkled skin.
**[Supplementary Material 1] About Nano-emulsion**
Nano-emulsion is an emulsion with fine particle diameters of about 20-200 nm. By finely dispersing oil agents in a water-based formulation, it is expected to provide an emollient effect derived from the oil agent (softening the skin and giving it a moist feel) and to facilitate the delivery of functional oil agents to the stratum corneum, all while maintaining the fresh feel of a lotion. Therefore, it is utilized as a technology that makes it easier to design experiential values such as a high sense of moisture, skin plumpness, and a smooth texture compared to lotions based mainly on water-soluble moisturizers.
On the other hand, it is known that the state of nano-emulsion changes significantly depending on the manufacturing method. Even with the same composition, stability and particle state change depending on the production conditions (Figure 3). This research applied the "special nano-emulsion manufacturing method (*2) that controls the dissolved state of surfactants," which has been established at Pola Chemical.
*2 "Successfully Stabilizing Oil in Water by Minimizing its Size: Improved Permeability of Functional Oils through the Establishment of a Special Nano-emulsion Manufacturing Method" (Issued March 13, 2024) https://www.pola-rm.co.jp/pdf/release_20240313_2.pdf
**[Supplementary Material 2] Skin compatibility and unevenness fit effect by nano-emulsion x polymer**
To evaluate the skin compatibility effect of the nano-emulsion formulation, the contact angle when dropped on artificial leather was measured as an index of skin compatibility, confirming an improvement in affinity (Figure 4).
Furthermore, the fit to unevenness was evaluated using a groove side model and a fine unevenness model. The results showed that the lotion with the Unevenness Fit Veil Technology, which combines nano-emulsion and a polymer with a lipophilic group, adheres to the side (sloped surface) while reaching the bottom (Figure 5), and penetrates inside the unevenness modeled after wrinkled skin.