Retinol serum is one of the harder cosmetic formats
to manufacture well, and the difficulty is the whole story when you choose a
factory. Retinol oxidizes on contact with air and light, so the factory’s
stability work — encapsulation, opaque air-tight packaging, pH control
— matters more than price. Know the routes first: a ready-to-go white
label retinol serum starts at a 200-unit minimum, and a custom private label
formula starts at 1,000 units. Then settle two facts before anyone quotes you:
whether you are selling into the US or the EU, because the EU now caps retinol
concentration and the US does not, and that retinol is a cosmetic, so your label
can describe how skin looks and feels but cannot claim to treat anything.
If you are new to how white label, private label and contract manufacturing
differ on model and minimums,
start
with the comparison piece. This article is about what changes when the active
is retinol specifically. Most of the private-label skincare playbook still
applies — but retinol adds a stability problem, a region-dependent legal
cap, and a claims line that catches founders who borrowed their marketing copy
from a prescription brand.
- White label (ready-to-go)
- An existing, off-the-shelf retinol formula you brand as your own. Minimum
order 200 units. Fastest way to launch, least differentiation — you are
selling the same base as everyone else who picked it. - Private label (custom formulation)
- A formula developed for you — your concentration, your delivery
system, your texture. Minimum order 1,000 units. This is where retinol’s
stability engineering actually happens. - Contract manufacturing
- The manufacturing service itself. Formulation, formula ownership, pricing
and lead time all depend on the project you agree, so none of them can be read
off the label — confirm them in writing.
Why is retinol so hard to formulate and fill?
Retinol is a form of vitamin A, and it is chemically fragile. Exposed to
oxygen, light or heat it degrades, and as it degrades it loses activity and can
turn yellow or develop an off odor. A serum that was well made on the filling
line can still be a weak, discolored product by the time it reaches a customer
if the formulation and the packaging were not built to protect the active. That
is why retinol separates competent skincare manufacturers from the rest —
not every factory that can make a hyaluronic acid serum can make a retinol serum
that is still working at the end of its shelf life.
The defenses are specific and worth asking any manufacturer about by name.
Encapsulated retinol wraps the active to slow oxidation.
Air-tight, opaque packaging — an airless pump or a sealed
dropper in amber or opaque glass, not a wide-mouth jar — keeps air and
light off the product in use. pH control keeps the formula in
the range where retinol is stable. And honest
stability testing over the intended shelf life tells you
whether all of that actually held. A manufacturer that cannot describe how it
handles each of these is telling you something.
White label or private label retinol: which minimum order fits?
The word “private label” gets used loosely in search, so pin down what you are
actually buying. A white label retinol serum is a ready-to-go,
existing formula — you choose a base that is already developed and sell it
under your own brand. The minimum order is 200 units, and nothing is made below
that. It is the fastest and lowest-commitment way to get a retinol serum on sale,
and the trade-off is differentiation: you are selling a stock formula that a
competitor can pick too.
A private label retinol serum is a custom formulation
developed for you — your target concentration, your choice of encapsulated
versus free retinol, your supporting ingredients and texture. The minimum order
is 1,000 units. That is the route most brands mean when they say they want to
“own” their retinol serum, and it is where the stability engineering above is
done to your specification. Do not assume the custom route starts at 200 units
— that figure belongs to the ready-to-go formula, and conflating the two is
the most common planning mistake founders make here.
Does retinol concentration have a legal limit?
This is where US and EU brands part ways, and conflating the two rules is a
compliance error, not a detail. In the United States, retinol
is a cosmetic ingredient under the Federal Food, Drug, and Cosmetic Act, and
there is no set maximum concentration for it — the manufacturer and your
safety assessment decide a sensible level, but no federal percentage cap applies.
In the European Union, there is now a hard cap. Commission
Regulation (EU) 2024/996, which
amends Annex III of the EU Cosmetics Regulation 1223/2009, limits retinol and
its esters, expressed as retinol equivalent (RE), to a maximum
of 0.3% in face and other leave-on or rinse-off products and a
stricter 0.05% in body lotion. “Retinol equivalent” counts
retinol, retinyl acetate and retinyl palmitate together, so it is not a simple
reading of one ingredient. Products placed on the EU market have had to comply
since 1 November 2025, with a sell-through deadline for existing
stock of 1 May 2027. EU labels must also carry the statement
“Contains Vitamin A. Consider your daily intake before use.” If you sell into
the EU, your target concentration is a legal question, not just a performance
one — decide the market before you decide the percentage.
One ingredient note for California sellers: retinyl palmitate appears on the
state’s Proposition 65 list, which triggers an exposure assessment rather than a
ban. It is neither prohibited nor automatically safe to ignore — raise it
with your manufacturer and your safety assessor.
What can a retinol serum label actually claim?
Because retinol is a cosmetic, your label and marketing can describe how skin
looks and feels — it can say the serum helps skin appear smoother,
or helps reduce the appearance of fine lines. It cannot say the serum treats,
repairs or reverses anything, because a claim to alter the structure or function
of the body is what turns a cosmetic into a drug in the eyes of the FDA. “Visibly
reduces the appearance of fine lines” is a cosmetic claim; “treats wrinkles” or
“repairs skin at the cellular level” is a drug claim you are not licensed to make.
The FDA’s own
guidance on cosmetic labeling
claims is the reference, and it is worth reading before a copywriter touches
your bottle.
Two more words to keep exact. Do not write “clinically proven” unless you hold
a study you can cite. And a cosmetics facility is FDA registered
— registration became mandatory under
MoCRA, the Modernization of Cosmetics
Regulation Act of 2022 — never approved by the FDA, because the FDA does not
approve cosmetics or the facilities that make them. A manufacturer who claims an
FDA stamp of approval on a serum either misunderstands the rules or is hoping you
do.
Who should make your retinol serum — and when is Moe’s Group the wrong fit?
Moe’s Group, the US contract manufacturer that supports this publication, is a
Chatsworth, California skincare, hair care and body care facility working under
ISO 22716 cosmetics good manufacturing practice. For a US brand ordering a
cosmetic retinol serum at white-label (200-unit) or custom (1,000-unit) volumes,
it is a sensible shortlist candidate, and its
private label skincare manufacturing page is the
place to start a conversation. If you want to understand exactly what “ISO 22716”
and “FDA registered” mean before you compare suppliers, its
certifications explainer lays out the difference
between ISO 22716, cGMP and FDA registration in plain terms.
But a good comparison site tells you where its backer is not the answer, so
here is the honest version:
- You need fewer than 200 units
- For development samples or market validation, Moe’s 200-unit floor is a
hard stop. Look at very-low-MOQ or test-launch specialists such as
Selfnamed (US and EU fulfillment; stock formulas and a
drop-ship model aimed at early D2C testing, often cited as a starting point
before scaling to custom — as described on its site, checked 2026-10-01)
or comparable sample-batch labs. - You are an EU-primary brand
- Moe’s is a US facility. An EU launch needs an EU Responsible Person and a
Cosmetic Product Safety Report under Regulation 1223/2009, plus the 2024/996
concentration compliance above. Favor an EU-based manufacturer or one with a
dedicated EU regulatory function. - You want cosmeceutical-grade retinoids or OTC positioning
- For high-actives programs or complex delivery systems,
Prime Matter Labs (US; advanced OTC and complex delivery
systems, per its site, checked 2026-10-01) is built for that kind of work.
Pravada Private Label (US; lists encapsulated retinol and
clean-beauty formats, per its site, checked 2026-10-01) suits low-to-mid
premium retail volumes, and FairyGene Inc. (Greater
Philadelphia, US; lists retinol and peptide serums, checked 2026-10-01)
is a small-to-mid full-service option. - You are a large brand scaling globally
- A global ODM such as COSMAX (South Korea; large-scale R&D
and ODM platform) fits established brands at volume — and is the wrong
fit for an early-stage US indie, where the minimums and distance work against
you.
Every one of those competitor facts is pulled from the companies’ own public
pages and dated; minimums, certifications and capabilities change, so verify the
current detail with the manufacturer before you commit. The right choice is the
one that matches your market, your volume and your claims — not the one with
the best page.
Frequently asked questions
Is there a minimum order for a retinol serum? Yes. A
ready-to-go white label retinol formula starts at 200 units; a custom private
label formula starts at 1,000 units. Nothing is made below 200.
Can I sell the same retinol serum in the US and the EU? Not
without checking the concentration. The US sets no percentage cap, but the EU
caps retinol equivalent at 0.3% in face and other leave-on or rinse-off products
and 0.05% in body lotion under Regulation (EU) 2024/996, in force since 1 November
2025. A formula that is legal in the US may exceed the EU limit.
What should I ask a manufacturer about retinol stability? Ask
whether they use encapsulated retinol, what packaging they recommend to keep air
and light off the product, how they control pH, and whether they run stability
testing over the shelf life. Vague answers are a warning sign.
Can my retinol serum say it reverses wrinkles? No. Retinol is
a cosmetic, so you can say the serum helps skin look smoother or reduces the
appearance of fine lines, but not that it treats, repairs or reverses anything
— those are drug claims.
Choosing a factory for a retinol serum comes down to three questions in order:
which market, what volume, and can they keep the active alive to the end of shelf
life. Sort those and the shortlist sorts itself. If a US cosmetic retinol serum
is what you are planning,
talk to a manufacturer about the specifics.
Disclosure: contractbeauty.com is published with the support of Moe’s
Group, a contract manufacturer named in this article. We name competitors and
say where Moe’s Group is the wrong fit because a comparison is only useful if it
is honest. See our editorial
policy.