Frequently Asked Questions

FlatPea is a Korean clinical peptide skincare brand dedicated to making clinical-grade results accessible to everyone — without clinics, needles, or harsh chemicals. Our products are formulated in Korea using GHK-Cu and PDRN, the same peptides used in medical skin regeneration.

FlatPea is headquartered in the United States. Our formulas are developed and manufactured in Korea, where peptide biotechnology is the most advanced in the world.

You can reach us anytime at hi@flatpeausa.com. We respond within 24 hours, Monday through Friday.

We accept all major credit cards including Visa, Mastercard, and American Express. We also support PayPal, Apple Pay, Google Pay, and Shop Pay installments — buy now, pay later in 4 interest-free payments.

The kit combines three clinical-grade serums that work together as a complete system. The Blue Copper GHK-Cu Glow Serum rebuilds collagen. The Rose PDRN Pink Peptide Serum repairs cells and restores hydration. The PDRN Needle Shot Hair Ampoule activates dormant hair follicles. Used together daily, they deliver visible results in 7–14 days.

GHK-Cu (Copper Tripeptide) is one of the most studied anti-aging peptides in science. It signals your skin to rebuild collagen — the same natural process your skin used when you were younger. PDRN (Polynucleotide) is the regenerative molecule used in medical aesthetics clinics worldwide. It accelerates cellular repair, fades dark spots, and restores deep hydration at a cellular level.

All skin types — dry, oily, combination, and sensitive. Our peptides are clinically gentle while remaining powerful enough to deliver visible results. Especially effective for anyone experiencing fine lines, dullness, uneven texture, dark spots, or thinning hair.

Yes. FlatPea is proudly cruelty-free. Our formulas contain zero harsh chemicals and are free from common irritants. Clean K-Beauty from start to finish.

Yes. Apply the serums after cleansing and before moisturizer. The GHK-Cu serum goes first, followed by the PDRN serum. Wait 60 seconds between each. The hair ampoule is applied directly to the scalp and does not interfere with your face routine.

Yes, each serum is available individually. However, the Complete Peptide Kit gives you all three at 41% off — and delivers the best results since each formula is designed to work synergistically with the others.

We offer FREE 3-Day Shipping on all kits worldwide. If your country is available at checkout, we ship to you.

All orders are dispatched within 24–48 hours. Delivery typically takes 3–5 business days in the United States. International orders may take 7–12 business days depending on location.

A tracking number will be sent to your email as soon as your order is dispatched. Use it to follow your delivery in real time.

The price you see is the price you pay. No hidden fees, no import surprises.

Contact us as quickly as possible at hi@flatpeausa.com with your order number and new address. We'll do our best to update it before dispatch.

Try the Complete Peptide Kit for 60 days. If you don't see visible results — firmer skin, reduced fine lines, improved texture — contact us and we'll refund every dollar. No questions. No forms. No hassle. The risk is 100% on us.

Email us at hi@flatpeausa.com with your order number. We'll process your refund immediately — no return shipping required within the 60-day guarantee period.

Refunds are issued to your original payment method within 3–5 business days after approval.

We're sorry to hear that. Email us at hi@flatpeausa.com with your order number and photos of the damage. We'll send a replacement immediately at no cost.

Most customers notice improved skin texture and glow within 7 days. Visible reduction in fine lines typically occurs between days 14–30. Full results — firmer, plumper, more even skin — are achieved by day 60. That's exactly why we offer a 60-day guarantee.

Step 1: Cleanse your face and dry thoroughly.

Step 2: Apply 3–4 drops of the Blue Copper GHK-Cu Glow Serum to face and neck. Pat gently until absorbed.

Step 3: Apply 3–4 drops of the Rose PDRN Pink Peptide Serum on top. Focus on fine lines, dark spots, and dry areas. Allow 60 seconds to absorb.

Step 4: Apply the PDRN Needle Shot Hair Ampoule directly to your scalp. Massage gently for 2 minutes. Use 3–4 times per week.

Yes. Our formulas are free from harsh chemicals, alcohol, and common irritants. If you have a known allergy, we recommend doing a patch test on your inner wrist 24 hours before full application.

We always recommend consulting your doctor before introducing new skincare products during pregnancy or breastfeeding.