Understand the chemistry, sources, and safety of camphor before selecting ingredients for your repellent line.
Every B2B product manager, procurement specialist, and private-label owner who sources mothballs or closet repellents will eventually ask the same question: what exactly is in these products? If you've landed here searching "what is camphor," "is camphor safe," or "natural vs synthetic camphor," you're in the right place. This guide is written for commercial buyers who need to make ingredient decisions backed by chemistry, not marketing claims.
The word "camphor" is used a bit loosely in the consumer products industry, so let's start with precise definitions. Natural camphor is a waxy, white, crystalline solid with a strong aromatic odor, historically obtained from the wood of the camphor tree (Cinnamomum camphora) native to East Asia. Chemically, natural camphor is a bicyclic monoterpene ketone with the formula C₁₀H₁₆O, known scientifically as (1R,4R)-camphor. Its CAS number is 76-22-2.
Natural camphor production was once a forestry industry — trees were felled, chopped into chips, and steamed to distill the fragrant crystals. As supplies tightened and environmental concerns grew, manufacturers shifted toward synthetic alternatives. Today, most "camphor balls" on the global market do not contain natural camphor at all. They are based on closely related synthetic molecules that mimic camphor's physical properties and insect-repellent behavior.
For commercial buyers, the distinction between natural and synthetic camphor matters across four dimensions: cost, supply reliability, safety profile, and regulatory status. Here's a side-by-side comparison:
| Factor | Natural Camphor (CAS 76-22-2) | Synthetic Camphor Ball Ingredient |
|---|---|---|
| Chemical | C₁₀H₁₆O camphor | Usually para-dichlorobenzene (C₆H₄Cl₂) |
| Source | Camphor tree wood (distillation) | Petrochemical synthesis |
| Cost | Premium, volatile supply | Stable industrial pricing |
| Moth-killing efficacy | Moderate | Excellent (sublethal to lethal doses) |
| Odor | Pleasant, medicinal | Sharp, characteristic camphor-like odor |
| Regulatory classification | Low-risk in most regions | Approved but requires proper labeling |
The key takeaway: natural camphor still exists as a niche ingredient for specialty and religious markets, but for the large-scale moth repellent category, synthetic alternatives — and specifically para-dichlorobenzene — dominate for compelling reasons. It is more consistent in purity, cheaper, stronger against moths, and produced continuously through modern chemical manufacturing rather than seasonal forestry operations.
If you're buying "camphor balls" from a Chinese manufacturer in 2026, there's a very good chance the active ingredient is para-dichlorobenzene (1,4-dichlorobenzene, formula C₆H₄Cl₂, CAS 106-46-7). This is the compound we at Jiutang use for our synthetic camphor ball line.
Para-dichlorobenzene is a colorless solid with a distinctive camphor-like odor that sublimates slowly at room temperature — meaning it transforms directly from solid to vapor without melting. That slow-release property is what makes it such an effective closet repellent: the vapor fills enclosed spaces continuously, deterring and eventually killing adult moths and their larvae. The same mechanism works against mildew spores, making it useful for shoe inserts, book protection, and textile packaging.
On safety: p-DCB is approved for household and industrial use in most regions including ASEAN countries, the EU (with specific labeling requirements), and most of Africa and Latin America. At normal use concentrations in a well-ventilated closet, exposure is considered safe for adults. Regulatory bodies including REACH and the U.S. EPA have set occupational exposure limits and storage guidelines that manufacturers and end-users must follow.
The camphor family of ingredients appears in four major application areas around the world:
As a buyer sourcing these products, you carry responsibility for importing safely and labeling correctly for your market. Here are the essentials:
The right choice depends entirely on your customer and your distribution channel. Here are three typical scenarios:
If you're a distributor serving price-sensitive retail markets in Southeast Asia or Africa, synthetic camphor balls (p-DCB-based) are almost always the winner. They outperform natural camphor on moth efficacy, ship more affordably, and carry stable regulatory status across the region.
If you're a premium private-label brand targeting European or North American consumers who actively seek "natural" ingredients, you may want to position a natural-camphor variant alongside a synthetic one — or simply be transparent with your labeling. Consumers in developed markets increasingly appreciate honesty about chemical ingredients.
If you serve religious and ceremonial markets, only natural camphor typically meets customer expectations, even at a higher price point. Make sure your supplier can certify the botanical source.
Looking to source camphor balls for your brand? Jiutang Daily Chemical manufactures both synthetic p-DCB camphor balls and naphthalene mothballs from our 3,000 m² facility in Jiangxi, China. Our OEM/ODM service supports custom packaging, labeling, scent, and size. Email sales@jiutangrihua.com or request a quote — we reply within 12 hours.
Ready to compare camphor balls with other moth repellent options? Read our next article: Mothballs vs Camphor Balls — Which Moth Repellent Should You Stock?
