Sarah K Carnival Shampoo Post-Chemical Brazil Nut 300ml

The Sarah K Carnival Shampoo Intense Nutrition Post-Chemical Brazil Nut 300ml is a daily nourishing shampoo from Sarah K's Carnival Limited Edition home-care line, designed for hair after smoothing treatments, coloring, bleaching, or relaxing services. Built around Brazil Nut oil, hydrolyzed collagen, and a blend of Brazilian Amazon botanicals, with a cuticle-friendly pH of 5.0-5.5, it cleanses gently while replacing the protein and lipid losses that chemical services leave behind. Use it daily on wet hair with a short 2-to-5-minute leave-on to deepen the nutrition step.

At a glance

Type: Daily nourishing shampoo, post-chemical home care
Use category: After smoothing, color, bleach, or relaxer services -- safe for daily use
Hero actives: Brazil Nut oil, hydrolyzed collagen, macadamia oil, silk and wheat amino acids, Brazilian Amazon botanical blend
pH: 5.0 / 5.5 (cuticle-friendly acidic range)
Format: 300ml flip-cap bottle
Markers: Carnival Limited Edition -- Made in Brazil

What it is

Carnival Shampoo is Sarah K's Limited Edition home-care wash, positioned by the brand as "Intense Nutrition Post-Chemical" -- a daily shampoo built for hair that has just been, or regularly is, exposed to chemical services. The festive Carnival packaging is a seasonal release; the formula sits firmly in the post-treatment-maintenance category. Brazil Nut oil, hydrolyzed collagen, and an Amazonian botanical blend deliver the "intense nutrition" promise, while the acidic pH 5.0-5.5 supports cuticle closure and helps treatment results last. The 2-to-5-minute leave-on time turns each wash into a mini nutrition step.

Key ingredients

The active composition follows the INCI on the label, with Amazonian botanicals featured alongside the protein blend:

Brazil Nut oil (Bertholletia Excelsa Seed Oil) -- the front-label hero, an Amazonian botanical oil rich in selenium, omega-9, and natural antioxidants, formulated for fiber nourishment.
Hydrolyzed collagen -- a reparative protein that helps fill cuticle gaps in chemically processed hair and supports surface smoothness.
Macadamia Ternifolia seed oil -- a Brazilian botanical conditioning oil with a fatty-acid profile close to the scalp's natural sebum.
Silk amino acids + wheat amino acids -- a protein-peptide blend providing small-molecule building blocks that the cuticle takes up during the leave-on step.
Brazilian Amazon botanical blend -- Copaiba resin, Carnauba wax, and Cupuacu (Theobroma Grandiflorum) butter, the signature Amazonian cocktail behind the "Carnival" character.
Surfactant system -- the formula is built on Cocamidopropylamine Oxide, Cocamidopropyl Betaine, and Cocamide DEA; SLS, SLES, and sodium chloride are not present in the ingredient list.

The full INCI is printed on the bottle. EU-disclosed fragrance allergens include Linalool and Alpha-Isomethyl Ionone.

What you can expect

After a single wash, hair feels softer and easier to comb, with visible shine returning where chemical processing had dulled it. Over a week of daily use, the acidic pH supports cuticle closure, helping smoothing treatments and color last longer between salon visits. The intense-nutrition blend means hair retains slip and softness without the squeaky-clean stripped feeling that harsher shampoos can leave behind. The 2-to-5-minute leave-on is the moment the formula does its protein-and-oil work; treating the wash like a mini nutrition step turns daily cleansing into ongoing aftercare for processed hair.

Who it is for

Carnival Shampoo is for anyone whose hair has been chemically processed -- smoothing services like Brazilian keratin and the Sarah K La Vie en Gold, salon color, highlights, bleach, or relaxer -- and who wants a daily wash that supports rather than strips treatment results. It also suits naturally dry or coarse hair that responds well to intense protein-and-oil nourishment. Fine hair that has not been chemically processed may find the formula too rich for daily use; for that texture, a shorter 2-minute leave-on works better than the full 5 minutes.

Pro tips

Apply to wet hair from roots through lengths, working into a soft lather with the fingertips at the scalp.
Leave on 2 minutes for a maintenance wash, the full 5 minutes for visibly dry or post-treatment days. Use the time for a body wash or skincare step in the shower.
Rinse with cool or lukewarm water -- it supports the acidic-pH cuticle closure better than hot water.
Pair with the Sarah K Carnival Conditioner for a full Carnival home-care wash routine, especially on mid-lengths and ends.
If your hair has not been chemically processed and feels weighed down, alternate Carnival Shampoo with a lighter daily wash twice a week.

How to use

Wet hair thoroughly with warm water.
Apply enough Carnival Shampoo to lather into the scalp and lengths.
Gently massage into the scalp, working through to the ends.
Leave on for 2 to 5 minutes -- shorter for routine washes, longer for post-treatment or visibly dry days.
Rinse thoroughly with cool or lukewarm water.
If your hair feels especially dry, repeat the application.
Follow with the Carnival Conditioner.

Safe for daily use.

Safety: For external use only. Avoid contact with eyes, mouth, and mucous membranes. Keep out of reach of children. Store away from direct light, excessive heat, and humidity. Discontinue use in case of sensitization. The full INCI is printed on the bottle.

In short

A daily nourishing shampoo from Sarah K's Carnival Limited Edition home-care line, built for hair after smoothing treatments, color, bleach, or relaxer services. Brazil Nut oil, hydrolyzed collagen, macadamia oil, and an Amazonian botanical blend deliver intense nutrition while the acidic pH 5.0-5.5 supports cuticle closure and helps treatment results last. The 2-to-5-minute leave-on turns each wash into a mini nutrition step. 300ml bottle, made in Brazil.

Complete your Sarah K Carnival routine

Sarah K Professional Hair Carnival Conditioner 300ml: the paired daily conditioner from the Carnival Limited Edition line, designed to smooth the cuticle, add slip, and support the nutrition the shampoo delivers.
Sarah K Sunset Leave-In Anti-Frizz Spray 200ml: a lightweight Brazilian leave-in mist that helps shield hair from heat tools, sun, pool, and beach as the finishing step of your daily routine.
Sarah K La Vie en Gold Ultimate Vegan Protein Restorative 850ml: a premium single-step salon smoothing treatment built on a vegan amino-acid protein scaffold -- the in-chair service Carnival Shampoo helps maintain at home.

Carnival Shampoo: frequently asked questions

What does "post-chemical" mean, and is this shampoo right for me if I have not had a smoothing treatment or color service?

"Post-chemical" means after smoothing services like Brazilian keratin, salon color, highlights, bleach, or relaxer. Carnival Shampoo is engineered to maintain the cuticle alignment those services create and to replenish the protein and lipid losses they cause. Natural untreated hair can use it as an intense-nutrition shampoo too, but the strongest fit is for chemically-treated hair that needs cleansing without stripping. For very fine, unprocessed hair, a lighter shampoo may be a better daily choice.

Can I use Carnival Shampoo every day? Do I need to leave it on for 2 to 5 minutes each time?

Yes, Carnival Shampoo is designed for daily use. The label specifies a 2-to-5-minute leave-on so the protein and oil actives have time to bind to the cuticle. For maintenance washes, 2 minutes is enough; on post-treatment days or when hair feels visibly dry, leave on the full 5 minutes for a deeper nutrition step. The cocamide-betaine surfactant system rinses cleanly, so daily use does not build up.

Will this shampoo strip my color or affect my smoothing treatment?

The surfactant system is cocamide and betaine-based -- SLS, SLES, and sodium chloride are not present in the ingredient list, which keeps the formula gentler on color than typical sulfate shampoos. The acidic pH of 5.0-5.5 supports cuticle closure, helping lock in color and treatment results. Carnival Shampoo is compatible with Brazilian keratin smoothing services, the Sarah K La Vie en Gold protocol, and standard color treatments when used as the daily home-care wash.

Will this rich, nourishing formula weigh down my fine or thin hair?

The formula is rich by design -- it is engineered for chemically-processed hair that has lost protein and lipids. If your hair is fine and not chemically treated, the full 5-minute leave-on may feel too rich. A 2-minute pause with thorough rinsing works well for fine textures. Pair with the Carnival Conditioner sparingly, applied only to mid-lengths and ends, and skip the roots to keep fine hair feeling clean and lifted.

Who should avoid this shampoo?

Customers seeking a strictly vegan formula should choose another shampoo -- Carnival contains hydrolyzed silk amino acids and hydrolyzed collagen, both animal-derived ingredients. Those with sensitivity to fragrance allergens such as Linalool or Alpha-Isomethyl Ionone, or to MCI/MI preservatives (Methylchloroisothiazolinone/Methylisothiazolinone), should patch-test or choose a different formula. For external use only; discontinue if sensitization occurs. The full INCI is printed on the bottle.

Need help with your order? Visit our customer service & online shopping FAQ for answers about shipping, returns, warranties, payment security, and everything around your purchase.