Skincare Routine and Product Usage

Based on your skin type (combination, dehydrated with dry patches and large pores) and the products you are interested in, here is an assessment of your proposed routine:

Proposed Application Order

Your proposed order:

1. Galactomyces Ferment Filtrate (Pitera)
2. Regular Hyaluronic Acid Serum
3. Stabilized Vitamin C (Natural-C Glycol™) Serum

This layering order is generally acceptable. Applying products from thinnest consistency to thickest is a common guideline, and typically Pitera and hyaluronic acid serums are lighter than a Vitamin C serum. Galactomyces Ferment Filtrate is often used early in a routine, and layering hydrating serums like hyaluronic acid before a Vitamin C serum can also work well.

Daily Sheet Masking

You asked about following this routine with a daily sheet mask containing hyaluronic acid, especially since you are experiencing dryness and flaking. While sheet masks can provide temporary hydration, the staff's previous reply correctly points out that daily masking may not solve the root cause of severe dryness. It's crucial to identify and address why your skin is so dry, such as evaluating your cleansing products (harsh cleansers can strip the skin) or other potential factors. Focusing on a gentle cleansing routine and consistent use of hydrating and barrier-supporting products is often more effective for long-term skin health and moisture balance than relying solely on daily masks.

Mixing Vitamin C Serum for DIY Mask

You asked if you can mix the Stabilized Vitamin C (Natural-C Glycol™) Serum into a liquid lotion for a DIY sheet mask. According to the product information for Stabilized Vitamin C (Natural-C Glycol™) Serum, it is sold as a finished product and is not suitable for mixing with any additional ingredients (except for small amounts of fragrance or color) because it can affect the stability of the Vitamin C. Therefore, it is not recommended to mix this serum into a lotion or any other base for a DIY mask. It should be used as intended, applied directly to the skin.

In summary, your proposed layering order for the serums is generally fine, but relying on daily sheet masks might not address the underlying cause of your dryness. It's highly recommended to investigate and resolve the source of your severe dry patches. Furthermore, the Stabilized Vitamin C (Natural-C Glycol™) Serum should not be mixed with other ingredients for a DIY mask due to stability concerns.