Free shipping Australia-wide — plus 10% off your first order with code CERVA10
Enjoy 10% Off Selected Makeup & Skincare — Shop Now
Shop Now from Cerva Australia — Defined Beauty. Distinctly Cerva.






We offer free shipping to every province and territory in Australia.
We offer free standard shipping throughout the Australia with no minimum spend. All orders include tracking for a smooth and reliable delivery experience.
We offer a 30-day return policy, which means you have 30 days after receiving your item to request a return. For Beauty & Personal Care items, returns are only accepted for products that arrive damaged, defective, incorrectly shipped, or in a condition that is the fault of the seller.
You should expect to receive your refund within four weeks of giving your package to the return shipper, although in many cases refunds are processed sooner. This timeframe includes the transit time for us to receive your return from the carrier (5–10 business days), the time it takes us to inspect and process the returned item once received (3–5 business days), and the time required for your bank to complete the refund request (5–10 business days).
If you need to return an item, simply contact us at cevraaustralia@gmail.com and our team will guide you through the return process.
We will notify you via email once we have received and processed the returned item and your refund has been issued.
Deliveries to outer and remote regions of the Australia may experience seasonal delays due to severe weather conditions or limited carrier availability. We appreciate your understanding and kindly ask that you allow additional time for your order to arrive safely.
Jack Black Double-Header is a sulfate-free shampoo plus conditioner in one that gently removes oil and product buildup while lightly conditioning and soothing the scalp.
Designed for men who want a streamlined shower routine without sacrificing hair health, this 16 oz Double-Header formula combines cleansing power with lightweight conditioning. Its PureScience blend centers on coconut-derived cleansers and kelp extract to clarify hair, while emollients and conditioning agents help detangle, smooth, and leave hair looking healthy and manageable. The scent profile is clean and uncomplicated, and the creamy lather rinses without leaving a heavy residue.
The formula uses mild, coconut-based surfactants that lift oil and styling residues without stripping essential moisture. Conditioning ingredients follow the cleanse step to replenish softness and maintain hair elasticity. Because it’s sulfate-free, the lather is gentle yet effective for frequent use.
Double-Header is formulated to suit a wide range of hair types—from fine to medium thickness—and pairs well with common men’s styling products. It lightly conditions without heavy silicones, so it won’t weigh down fine hair or reduce hold for styled looks. For very coarse or curly hair, you may prefer a richer conditioner in addition to this two-in-one.
Massage a quarter-size amount into thoroughly wet hair and scalp, work into a creamy lather, then rinse completely. For heavier buildup or after applying strong hold products, a second short lather helps remove residual styling waxes. Daily use is appropriate for many users; adjust frequency based on scalp oiliness and styling habits.
The PureScience formula highlights coconut-derived surfactants for gentle cleansing and kelp extract for mineral-rich support. Small amounts of conditioning agents smooth the cuticle to increase shine and manageability. Botanical extracts provide mild soothing and antioxidant support without heavy buildup.
Who is this for: Jack Black Double-Header Shampoo + Conditioner is ideal for men seeking a convenient two-in-one that clears oil and product residue while adding light conditioning and detangling. It suits daily washers who prefer a sulfate-free, low-residue formula that supports a natural, healthy appearance—especially those using daily styling products or who want a straightforward, effective shower step without extra heavy conditioning. If you have very dry, tightly coiled hair or need intense deep conditioning, consider pairing Double-Header with a dedicated moisturizing treatment occasionally for best results.
Water (Aqua), Disodium Laureth Sulfosuccinate, Sodium Methyl Cocoyl Taurate, Cocamide MEA, Cocamidopropyl Hydroxysultaine, PEG-7 Glyceryl Cocoate, Amodimethicone, Sodium Lauryl Sulfoacetate, Sodium Lauroyl Sarcosinate, Decyl Glucoside, Lauryl Glucoside, Glycerin, Coconut Oil Glycereth-8 Esters, Dimethicone, Shea Butter Glycereth-8 Esters, Cocos Nucifera (Coconut) Water, Citrus Grandis (Grapefruit) Peel Oil*, Camellia Sinensis Leaf Extract*, Macrocystis Pyrifera (Kelp) Extract*, Ocimum Basilicum (Basil) Leaf Extract*, Cocos Nucifera (Coconut) Oil, Oryza Sativa (Rice) Extract, Hydrolyzed Lupine Protein, Oryza Sativa (Rice) Seed Protein, Salvia Lavandulaefolia (Sage) Leaf Oil, Phytic Acid, Creatine, Mentha Piperita (Peppermint) Oil, Panthenol, Citric Acid, Ethylhexylglycerin, Glycol Distearate, Acrylates Copolymer, Cetrimonium Chloride, Polyquaternium-10, Trideceth-12, Polyquaternium-7, C11-15 Pareth-7, Laureth-23, PEG-150 Distearate, Laureth-4, Sodium Phytate, Laureth-9, Dipropylene Glycol, Cystine Bis-PG-Propyl Silanetriol, Sodium Hydroxide, BHT, Phenoxyethanol, Chlorphenesin, Potassium Sorbate, Sodium Benzoate, Benzyl Alcohol, Limonene, Linalool *Certified Organic
Q: Is this shampoo safe for colored hair?
A: Yes. Its sulfate-free, coconut-based formula is gentler on color than traditional sulfates, but always patch-test and monitor color retention over time.
Q: Can I use it every day?
A: Yes, most people can use it daily. Adjust frequency if your scalp becomes too dry or if you need extra hydration.
We offer a 30-day return policy, which means you have 30 days after receiving your item to request a return. For Beauty & Personal Care items, returns are only accepted for products that arrive damaged, defective, incorrectly shipped, or in a condition that is the fault of the seller.
To be eligible for a return, your item must be in the same condition that you received it — unopened, unused, with all original packaging, safety seals intact, and all included accessories. For hygiene and safety reasons, opened or used beauty, skincare, haircare, fragrance, makeup, nail, tattooing, and personal care items cannot be returned.
You will also need your receipt or proof of purchase.
To start a return, contact us at cevraaustralia@gmail.com
All approved returns must be sent to the following address:
Cerva Australia – Returns Department
2601 E 28th St, STE 005
Signal Hill, California
United States
If your return is accepted, you will receive a prepaid return shipping label (when applicable) along with detailed instructions on how and where to send your package. Items sent back without first requesting a return will not be accepted.
You can always reach us at cevraaustralia@gmail.com for any return questions.
Please inspect your order upon delivery and contact us immediately if your item is damaged, defective, incorrect, leaking, broken, or arrives with missing components. We will evaluate the issue and make it right.
For seller-caused issues (damaged, defective, incorrect, expired), Cerva Australia will cover the return shipping cost.
For safety and hygiene reasons, the following items cannot be returned:
If you are unsure about your item’s return eligibility, please contact us before sending it back.
Exchanges are only available for unopened items that arrived damaged, defective, incorrect, or expired. The fastest way to receive the item you want is to return the original (if eligible) and place a new order once your return is approved.
If your order is shipped into the European Union, you have 14 days to cancel or return the item for any reason. However, Beauty & Personal Care items must still be unopened, unused, with all seals intact, and in their original packaging.
Once we receive and inspect your return, we will notify you whether the refund was approved. If approved, your refund will be processed to your original payment method within 10 business days. Please note that your bank or credit card provider may require additional time to process and post the refund.
If more than 15 business days have passed since your refund was approved, please contact us at cevraaustralia@gmail.com
ORDER PROCESSING TIME
All orders are processed within 2–3 business days after payment confirmation. Orders placed on weekends or Australia public holidays will be processed on the next business day.
If there is any delay in preparing your order, we will notify you promptly by email.
SHIPPING TIME
Cerva Australia ships exclusively within the Australia (England, Scotland, Wales and Northern Ireland).
Standard delivery: Total delivery time is approximately 5 business days (2–3 days processing + delivery).
Remote or outlying regions: 6–10 business days due to distance, weather conditions and limited carrier routes.
Deliveries to areas such as the Scottish Highlands and Islands, Isle of Man, Channel Islands and certain rural postcodes may take longer because of seasonal and logistical factors.
We always strive for timely deliveries, but once a parcel is handed to the courier, Cerva Australia is not responsible for carrier delays, customs checks or weather-related disruptions.
SHIPPING CONFIRMATION AND TRACKING
Once your order has shipped, you will receive a shipping confirmation email containing your tracking number and a link to track your shipment.
Tracking details typically become active within 24–48 hours after dispatch.
SHIPPING RATES
Standard shipping within the Australia is free on all orders.
Expedited or express delivery options may be available at checkout for an additional fee depending on your location and chosen courier.
ADDRESS ACCURACY
Please ensure your shipping address is complete and accurate before placing your order. Cerva Australia is not responsible for delays, lost shipments or delivery issues caused by incorrect or incomplete addresses (including wrong house numbers, postcodes or flat numbers).
DAMAGED OR LOST PACKAGES
If your order arrives damaged, please contact us immediately at cevraaustralia@gmail.com with clear photos of the outer packaging and the damaged contents. We will review the case and work to resolve the issue as quickly as possible.
If your parcel is marked as “delivered” by the courier but you have not received it, please first:
Check with neighbours or building reception/concierge
Verify the shipping address used during checkout
Contact your local delivery office or courier depot
If the issue continues, email us and we will help you open an investigation or claim with the carrier.
INTERNATIONAL SHIPPING
At this time, we only ship within the Australia. We may expand our shipping coverage to international destinations in the future.
CONTACT
If you have any questions about shipping, please contact us at: cevraaustralia@gmail.com
Thanks for subscribing!
This email has been registered!