Frequently Asked Questions

Volufiline is a patented active ingredient (INCI: Sarsasapogenin) clinically shown to increase subcutaneous adipose tissue volume by up to 8.4% in 4 weeks. CELDYQUÉ Volufiline 100% concentrate delivers this ingredient at full, undiluted potency.

It targets areas that lose volume with age — cheeks, nasolabial folds, under eyes, and lips — acting as a non-invasive volumizing serum. It works by stimulating lipogenesis (fat cell growth) in targeted areas, essentially restoring facial plumpness without injectables.

CELDYQUÉ Volufiline 100% is a concentrate, not a standalone serum. Here's how to use it:

• Dispense 1–3 drops into your palm
• Mix with your moisturizer, cream, or serum before applying
• Apply to target areas: cheeks, nasolabial folds, under eyes, lips, or brow bone
• Start once daily (evening); increase to morning and evening once your skin is comfortable
• For visible results, use consistently for at least 4–8 weeks

Volufiline is compatible with most other actives — niacinamide, peptides, hyaluronic acid — and does not cause photosensitivity, so it can be used day or night.

Clinical studies on Volufiline show measurable volumizing effects within 4 weeks of consistent daily use. In the original clinical trial, participants saw an average 8.4% increase in subcutaneous volume after 28 days with twice-daily application.

Most users report visible improvement in plumpness and fullness within 4–6 weeks. Because Volufiline works by stimulating adipogenesis rather than surface-level hydration, results build gradually and continue improving with extended use.

Retinal (retinaldehyde) and retinol are both forms of Vitamin A, but they work at different speeds. The conversion chain in skin is: Retinol → Retinal → Retinoic acid (the active form).

Because retinal is one step closer to retinoic acid, it delivers results approximately 11× faster than retinol at the same concentration. This means CELDYQUÉ Retinal 0.5 can produce visible results — improved skin texture, reduced fine lines, more even skin tone — faster than a comparable retinol product.

CELDYQUÉ Retinal 0.5 can be used by beginners, but as with all retinoids, a gradual introduction is recommended:

• Start 2–3 nights per week, apply a pea-sized amount to dry skin
• Avoid using the same night as AHAs, BHAs, or other exfoliants
• Always use SPF in the morning — retinoids increase photosensitivity
• After 3–4 weeks without irritation, increase to nightly use

For people in their early 20s: retinoids used preventively (2–3x per week) are appropriate and effective. You do not need to wait until visible aging appears to start.

Retinal 0.5 + Niacinamide: Compatible. Niacinamide can actually help reduce the irritation potential of retinoids. Apply niacinamide first, let absorb, then apply Retinal 0.5.

Retinal 0.5 + AHAs/BHAs: Avoid using on the same night. Combine on alternating nights — for example, AHA Monday/Wednesday, Retinal Tuesday/Thursday.

Retinal 0.5 + Vitamin C: Use separately — Vitamin C in the morning, Retinal 0.5 at night.

CELDYQUÉ PDRN 12% + EGF Peptide Serum combines two advanced skin-repair ingredients:

• PDRN (Polydeoxyribonucleotide) at 12% — supports skin regeneration, reduces inflammation, and aids wound healing. PDRN is the same ingredient used in clinical aesthetic medicine and dermatology procedures.
• EGF (Epidermal Growth Factor) peptides — signal the skin to accelerate cell turnover and collagen production.

This serum is ideal for: post-procedure recovery, chronic redness or sensitivity, damaged skin barriers, and anyone focused on deep regeneration rather than surface-level hydration.

Apply CELDYQUÉ PDRN 12% + EGF Peptide Serum after cleansing and toning, before heavier moisturizers. It can be used morning and evening.

It is compatible with most actives and can be layered with niacinamide, hyaluronic acid, and peptides. Because of its focus on repair and barrier support, it pairs particularly well with CELDYQUÉ Retinal 0.5 — use PDRN+EGF on nights when you're not using Retinal, or use it in the morning while using Retinal at night.

CELDYQUÉ Niacinamide 20% delivers Vitamin B3 at a high-efficacy concentration clinically shown to visibly minimize pores, reduce hyperpigmentation, regulate sebum production, and strengthen the skin barrier.

For most skin types, 20% niacinamide is well-tolerated. To introduce safely:

• Begin with every other day application
• If mild flushing or tingling occurs, this typically subsides within 1–2 weeks
• Apply after cleansing, before heavier serums and moisturizer
• After 2 weeks, increase to daily use morning and/or evening

Yes. CELDYQUÉ Niacinamide 20% is compatible with Vitamin C. Older concerns about these two ingredients forming niacin (which causes flushing) are largely outdated — at modern usage concentrations and with stable Vitamin C formulations, this reaction is negligible.

Recommended approach:

• Morning: Vitamin C serum → moisturizer → SPF
• Evening: CELDYQUÉ Niacinamide 20% → moisturizer

If you have sensitive skin, a split routine (Vitamin C AM, Niacinamide PM) is the most cautious approach.

CELDYQUÉ Azelaic Acid 12% is a multi-functional active that treats hyperpigmentation, rosacea, acne, and post-inflammatory redness simultaneously. At 12%, azelaic acid operates at the prescription-strength threshold used in clinical dermatology.

Key benefits:

• Hyperpigmentation: Inhibits tyrosinase, reducing melanin overproduction
• Acne: Antibacterial action against Cutibacterium acnes
• Rosacea & redness: Anti-inflammatory pathway reduces vascular reactivity

Apply a thin layer to cleansed skin once or twice daily. Unlike most actives, azelaic acid does not cause significant photosensitivity — it can be used in the morning without additional SPF concerns (though daily SPF is always recommended). It is safe for sensitive skin and compatible with niacinamide, peptides, and retinoids.

CELDYQUÉ Bakuchiol is a plant-derived retinol alternative from Psoralea corylifolia seed extract. Unlike retinoids, bakuchiol has not been linked to teratogenicity and is widely regarded as a safer option during pregnancy and breastfeeding for those who want anti-aging and skin-renewing benefits.

CELDYQUÉ Bakuchiol provides retinol-like effects — reduced fine lines, improved skin texture, and brightening — without the irritation or pregnancy concerns of retinol.

Bakuchiol works via different receptor pathways than retinol, but clinical studies show it delivers comparable improvements in fine lines, skin elasticity, and pigmentation with significantly less irritation. A 2018 study in the British Journal of Dermatology found bakuchiol comparable to 0.5% retinol on key anti-aging metrics after 12 weeks.

CELDYQUÉ Bakuchiol is ideal for those who want retinol-like results with none of the purging, peeling, or downtime — including sensitive skin types and those who cannot use retinoids.

CELDYQUÉ 9-Peptide Hair Growth Scalp Care Serum Roll-On delivers a concentrated blend of 9 hair-targeting peptides directly to the scalp via a precision roll-on applicator for targeted, mess-free application.

The peptide complex targets hair loss through multiple pathways:

• DHT-blocking peptides — address hormonal hair thinning
• Follicle-stimulating peptides — extend the anagen (growth) phase of the hair cycle
• Scalp microcirculation improvement — increases nutrient delivery to follicles
• Scalp barrier support — reduces inflammation that can impair follicle function

How to use:

• Apply directly to the scalp using the roll-on tip, focusing on areas of thinning or shedding
• Massage gently for 1–2 minutes after application to boost absorption
• Use once or twice daily — no rinsing required
• Apply to a clean, dry scalp (after washing or on rest days)

Expected timeline: Consistent use for 8–12 weeks is recommended before evaluating visible improvements. Hair growth cycles are approximately 3 months, so patience is essential. Most users report reduced shedding within 4–6 weeks and improved density by week 10–12.

Morning routine:

1. Cleanser
2. Toner
3. PDRN 12% + EGF Serum (if using)
4. Niacinamide 20% or Azelaic Acid 12%
5. Moisturizer + Volufiline 100% (mixed in palm)
6. SPF — always last

Evening routine:

1. Cleanser
2. Toner
3. Niacinamide 20% or PDRN+EGF (on non-retinal nights)
4. Retinal 0.5 or Bakuchiol
5. Moisturizer + Volufiline 100%

Unopened CELDYQUÉ products last 36 months from the manufacturing date. Once opened, use within 12 months. Check the PAO (Period After Opening) symbol on the bottom of each bottle.

Store in a cool, dry place away from direct sunlight. CELDYQUÉ Retinal 0.5 is particularly light-sensitive — keep in its original opaque packaging and avoid bathroom shelf storage where humidity and light exposure are high.

CELDYQUÉ is available internationally through the following authorized channels:

• Amazon — US and select international markets
• YesStyle — ships worldwide
• Stylevana — global K-beauty retailer

Delivery times and availability depend on retailer and destination. For the most current list, visit our Where to Buy page.

To ensure product authenticity, purchase only from CELDYQUÉ official storefronts and authorized retailers (Amazon, YesStyle, Stylevana). Counterfeit or grey-market products may contain different formulations and are not eligible for customer support.

See our full list of authorized retailers at celdyque.com/store.

Email [email protected]. Include your order number (if available) and the product name for faster support.

For skincare routine questions, ingredient compatibility advice, or product recommendations, you can also reach us via CELDYQUÉ's official Instagram, TikTok, or Threads accounts (@celdyque_official).