HISENRAIN Vitamin C Retinol Hyaluronic Acid Serum Duo | All Skin

Reveal a brighter, smoother, and more radiant complexion with the HISENRAIN Vitamin C + Retinol + Hyaluronic Acid Serum Duo — a powerful two-serum combo crafted for all skin types. Formulated with three of skincare's most celebrated ingredients, this duo delivers visible brightening, deep hydration, and a visibly more youthful-looking appearance with consistent daily use.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Why You'll Love This Serum Duo

• Vitamin C — Helps visibly brighten skin tone, even out discoloration, and promote a luminous, glowing complexion.
• Retinol — A time-honored ingredient that supports skin renewal, smooths the look of fine lines, and helps refine skin texture for a more youthful appearance.
• Hyaluronic Acid — Attracts and locks in moisture for plump, supple, deeply hydrated skin throughout the day.
• Combo Value — Two serums in one set means a complete, streamlined skincare routine at an exceptional price.
• For All Skin Types — Unisex formula suitable for normal, dry, oily, combination, and sensitive skin.
• CPNP Certified — Meets rigorous cosmetic safety standards for your peace of mind.
• Multi-Benefit Formula — Targets brightening, hydration, oil control, pore appearance, and the visible signs of aging in a single routine.

Key Specifications

• Brand: HISENRAIN
• Certification: CPNP
• Formulation: Essence / Oil Serum
• Key Ingredients: Vitamin C, Retinol, Hyaluronic Acid
• Skin Type: All Skin Types (Unisex)
• Number of Pieces: 2-piece combo set
• Shelf Life: 3 years
• High-Concern Chemicals: None
• Country of Origin: Made in China

How to Use

1. Cleanse your face thoroughly and pat dry.
2. Apply a thin, even layer of the serum to your face.
3. Gently massage in an upward motion until fully absorbed.
4. Follow with your favorite moisturizer.
5. Use daily — consistent application delivers the best visible results over time.

Warnings & Safety

• For external use only. Avoid contact with eyes.
• If you have significant skin sensitivities or known allergic reactions, consult a dermatologist or skincare professional before use.
• Patch test on a small area of skin before full application if you have sensitive skin.
• Keep out of reach of children.

Complete Your Skincare Routine

Pair this serum duo with other targeted skincare essentials for a full regimen:

• 0.3ml & 0.5ml Ampoule Head Cap Adapter for Hyaluronic Pen
• 0.3ml & 0.5ml Hyaluron Pen Ampoule Head Cartridge | Skin Care

Authoritative Skincare Resource

Want to learn more about the science behind key skincare ingredients? The National Institutes of Health (NIH) provides peer-reviewed research on the efficacy of topical ingredients like Vitamin C and Hyaluronic Acid in skincare formulations.

Learn more: Face washing

Frequently Asked Questions

Q: What skin types is the HISENRAIN Vitamin C + Retinol + Hyaluronic Acid Serum Duo suitable for?

A: This serum duo is formulated for all skin types — including dry, oily, combination, normal, and sensitive skin. Its unisex formula makes it ideal for anyone looking to brighten their complexion, support a more youthful appearance, and maintain deep hydration.

Q: Can I use the Vitamin C serum and the Retinol serum together in the same routine?

A: Yes! As a duo set, these serums are designed to complement each other. Many skincare enthusiasts use the Vitamin C serum in the morning for brightening and daytime antioxidant support, and the Retinol + Hyaluronic Acid serum in the evening for overnight skin renewal and deep moisture. Always follow with SPF during the day when using Retinol.

Q: How long does it take to see visible results?

A: With consistent daily use, many users begin to notice visible improvements in skin brightness, texture, and hydration within 4–8 weeks. For best results, apply as directed every day as part of your regular skincare routine.

Q: Is this serum duo CPNP certified?

A: Yes, the HISENRAIN Serum Duo holds CPNP (Cosmetic Products Notification Portal) certification, indicating it meets the cosmetic safety and compliance standards required for the European market — giving you added confidence in the product's safety and quality.