FAQ - Frequently Asked Questions
Frequently Asked Questions
🧴 Product Usage
Q: How do I use the serum capsules? How many should I use per application?
Use 1 capsule per application. Twist or cut open the capsule, squeeze the serum onto your fingertips, and apply evenly to clean, dry skin. Gently massage until fully absorbed. Vitamin C capsules can be used morning or night; Retinol capsules are best used at nighttime.
Q: Why capsules instead of a dropper bottle?
Each capsule is individually sealed to protect active ingredients — like Vitamin C and Retinol — from air and light exposure. This ensures maximum potency and freshness with every single use, eliminating the oxidation that commonly occurs in open bottles. They're also travel-friendly and mess-free.
🌿 Ingredients & Benefits
Q: What is the difference between Plant Retinol and regular Retinol?
Traditional Retinol (Vitamin A) is highly effective for anti-aging but can cause irritation, redness, and peeling — especially for sensitive skin. Plant Retinol is a gentle, plant-derived alternative with similar anti-aging benefits but significantly lower irritation risk. It's ideal for sensitive skin types or those new to retinol.
Q: Can I use retinol products if I have sensitive skin?
Yes! We recommend our Plant Retinol (Low-Irritation) line for sensitive skin. Start by using it 2–3 times per week and gradually increase frequency as your skin adjusts. If you have a severe skin condition, please consult a dermatologist before use.
Q: Can I use Vitamin C and Retinol at the same time?
We recommend using Vitamin C in the morning (for antioxidant protection and brightening) and Retinol at night (for repair and anti-aging). Our Triple Retinol+VC formula is professionally balanced for safe combined use in a single step.
Q: What skin concerns do your products address?
Our products are formulated to target:
- Fine lines and wrinkles
- Sagging and loss of firmness
- Dark spots and uneven skin tone
- Dullness and lack of radiance
- Dehydration and rough texture
Q: Who are these products suitable for?
Our products are suitable for adults aged 25 and above looking to address anti-aging, brightening, and fine line concerns. Pregnant or breastfeeding women should consult a doctor before using Retinol products.
Q: Are your products fragrance-free and alcohol-free?
Yes. Our Retinol+HPR serum capsules are fragrance-free, alcohol-free, and non-greasy — formulated to minimize irritation while delivering effective results.
📦 Orders & Shipping
Q: How long does shipping take?
Orders are typically processed and shipped within 1–2 business days. Delivery times vary by region — please refer to the estimated delivery date shown at checkout for the most accurate timeframe.
Q: Do you ship internationally?
Yes, we ship to multiple countries worldwide. Shipping options and rates will be displayed at checkout based on your delivery address.
📩 Contact Us
Still have questions? We're happy to help!
- 📧 Email: sfter-sales@hkhcosmetics.com
- 💬 Live Chat: Available via the chat icon at the bottom right of our website