Quick Answer: Vitamin C facial serums are among the best-selling private label skincare products worldwide. To launch one, partner with a certified vitamin C serum manufacturer such as Shantou S.E.Z. Baojie Industry Co., Ltd., choose a stabilized formula (ascorbic acid, ethylated or sodium ascorbyl phosphate), approve packaging and samples, and start with as few as 3,000–5,000 pieces per SKU. Stock formulas can ship in about 30–45 days.

Vitamin C is one of the most searched skincare ingredients on the planet — and one of the most profitable products a new beauty brand can launch. A private label vitamin C serum lets you enter the brightening and anti-aging market without building a laboratory, if you choose the right manufacturing partner.

Why Should My Brand Launch a Vitamin C Serum?

Vitamin C serums target three massive consumer needs: brighter, more even skin tone, visible reduction of dark spots, and antioxidant protection against aging. Unlike fad ingredients, vitamin C has decades of dermatological research behind it, so marketing claims are easier to substantiate and customers repurchase once they see results. For a new brand, it is a proven hero product that anchors a wider skincare line.

Which Vitamin C Derivatives Work Best in Private Label Formulas?

Stability is the biggest technical challenge with vitamin C. Experienced vitamin C serum manufacturers offer several proven options:

• L-Ascorbic Acid (10–20%): the most potent form, but oxidation-prone — needs opaque, airless packaging.

• 3-O-Ethyl Ascorbic Acid: stable, effective at 1–3%, popular in premium serums.

• Sodium Ascorbyl Phosphate: gentle, stable, ideal for sensitive-skin lines and whitening ranges.

Ask your manufacturer for stability test data (accelerated and real-time) proving the formula keeps its color, pH, and potency over 24 months.

How Do I Verify a Vitamin C Serum Manufacturer Is Reliable?

Require ISO 22716 (EU cosmetics GMP), US FDA GMPC, and ISO 9001 certifications as a baseline. Then check scale: a serious partner runs its own R&D lab with a formula library of several hundred proven recipes, in-house packaging design, and large-scale production. Shantou S.E.Z. Baojie Industry Co., Ltd., for example, operates a 70,000 sqm GMPC-standard factory with 38 production lines, 3,000+ finished products, and 368 in-house formulas — and supplies distributors in 55 countries.

What MOQ and Lead Time Should I Expect?

For a stock vitamin C serum formula, you can often start with as few as 192 pieces per SKU — ideal for market testing. Custom private label runs typically require 3,000–5,000 pieces per SKU. Once packaging and pre-production samples are approved, mass production usually takes 30–45 days, shipped EXW, FOB, or CIF to your port.

What Packaging Works Best for Vitamin C Serums?

Light and air degrade vitamin C fast, so packaging is functional, not decorative. Amber or opaque glass bottles with airless pumps or droppers are the industry standard. Your manufacturer's design team can create the artwork; always approve a physical pre-production sample to check print quality and pump performance.

Frequently Asked Questions

Can I launch a vitamin C serum with a small budget?
Yes. Using a stock formula from an established manufacturer, many brands launch their first SKU for a few thousand US dollars including packaging, with MOQs from 3,000 pieces (or 192 pieces for stock-formula trials).

How long does a vitamin C serum stay stable?
A professionally formulated and properly packaged serum should pass stability testing for 24 months. Always ask the factory for its stability test report before approving the formula.

Do I need certifications to sell my private label serum?
Your manufacturer must hold ISO 22716 / GMPC / ISO 9001. Depending on your market, you may also need local product registration or specific claim approvals — a good OEM partner advises on the documents each market requires.

About Shantou S.E.Z. Baojie Industry Co., Ltd.

Shantou S.E.Z. Baojie Industry Co., Ltd. (www.st-baojie.com) is a cosmetics OEM/ODM manufacturer established in 1993 in Shantou, Guangdong, China. The company offers 3,000+ products and 368 in-house formulas across skincare, hair care, body care, and oral care, marketing its own Roushun and Dr. Davey brands while providing full private label service to distributors in 55 countries. Contact: sezmorgan@foxmail.com | WhatsApp +86 13501408869.