The value of freeze-dried powder lies in preserving activity. Active ingredients are solidified into powder under low temperature and vacuum, reducing degradation during shipping and storage compared with liquid serums, while relying less on preservatives. Using it correctly comes down to a few steps.

1. How to mix

Powder and solvent are packed separately. Following the product instructions, inject the solvent into the powder vial and reconstitute before use. For example, the Recombinant Type III Collagen set contains 80mg powder x 3 plus 5ml hyaluronic acid solvent x 3; the Epidermal set contains 100mg powder plus 10ml solvent.

Suggested order: after cleansing and toning, reconstitute one vial and apply in small amounts to the cheeks, forehead and chin, tapping until absorbed, then follow with a cream to seal in moisture. The whole routine takes a few minutes.

2. Storage and shelf life after mixing

Unopened powder can be kept in a cool, dry place away from light and heat. Once the solvent has been added, it must be refrigerated at 0-6 degrees Celsius and used within 2-3 days, ideally in one go, to preserve activity.

3. What to layer with

Avoid layering multiple surface-care products at once. If you use acid-containing products, separate the timing or consult a professional. Since reconstituted powder absorbs quickly, following with a moisturising cream is common practice.

4. What not to do

Never inject. SHITAQI freeze-dried powder is a topical cosmetic for external use only. It may be used with devices such as electric microneedling or derma rollers for shallow introduction, or applied directly after toner.

Do not combine aggressively with strong exfoliants. Keratin care powder is designed for gentle daily surface care, not for aggressive resurfacing - healthy surface care means not overdoing it.

If your skin is thin or flushes easily, reduce frequency and patch-test first. During pregnancy or breastfeeding, consult a doctor. If your skin is in an acute flare, seek medical advice first.

5. FAQ

Q: How is freeze-dried powder different from a regular serum?
A: The key difference is activity preservation. The powder is solidified under low temperature and vacuum, reducing degradation in transit and storage, and must be prepared fresh before use.

Q: Can I use it daily?
A: As daily care, most people can follow the recommended frequency; sensitive skin should reduce frequency and patch-test first.