Search  for anything...
cosmolux

BondGuard Bonding Oil, Heat Protectant & Repair Oil for Damaged, Color-Treated & Frizzy Hair, Adds Shine & Tames Frizz, Lightweight & Vegan - 1.7 fl oz (50 mL)

  • Based on 169 reviews
Condition: New
Checking for the best price...
$19.95 Why this price?

Buy Now, Pay Later

As low as $4 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Tuesday, Aug 18
Order within 14 hours and 13 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Features

  • 450F HEAT PROTECTION: Safeguard your hair from extreme heat styling with our advanced protectant oil. It shields strands from flat irons and blow dryers up to 450F, so you can style freely without worry. Enjoy salon-quality results while keeping your hair strong and healthy.
  • HAIR REPAIR & STRENGTHENING: Powered by nourishing botanical oils, this bonding oil helps mend damaged strands from root to tip. It reinforces weakened hair bonds to reduce breakage and split ends, restoring strength and vitality to hair thats been color-treated, bleached, or chemically processed.
  • ADDS SHINE & TAMES FRIZZ: Infused with a blend of natural oils, our formula revives dull, dry hair with instant luster. It boosts your hairs natural shine for a glossy finish while smoothing out frizz and flyaways. Enjoy sleek, silky-soft strands that look salon-fresh every day.
  • LIGHTWEIGHT & NON-GREASY: This featherlight serum absorbs quickly without leaving any oily residue, so its perfect even for fine or thin hair. Enjoy smooth, soft style with full bounce and volumeno heaviness or limp locks.
  • VEGAN & CRUELTY-FREE: Crafted with a conscience, our formula contains no harsh chemicals and is never tested on animals. Its 100% vegan and safe for all hair types (including color-treated hair). Plus, its effortless to applysimply work 2-3 drops into damp or dry hair before styling for instant protection and shine.

Product Dimensions ‏ : ‎ 2.76 x 1.18 x 1.18 inches; 2.4 ounces


Item model number ‏ : ‎ bondguard-st4


Manufacturer ‏ : ‎ Cosmolux


Best Sellers Rank: #205,483 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #1,537 in Hair Treatment Oils


#1,537 in Hair Treatment Oils:


Customer Reviews: 4.5 4.5 out of 5 stars (229)


Product Benefits: Frizz Control, Hair Growth, Heat Protection, Shine, UV Protection


Hair Type: Frizzy


Scent Name: Citrus


Item Form: Oil


Liquid Volume: 1.7 Fluid Ounces


Number of Items: 1


Unit Count: 1.7 Fluid Ounces


Item Volume: 50 Milliliters


Brand Name: cosmolux


Manufacturer: Cosmolux


Material Type Free: Aluminum Free, Ammonia Free, Formaldehyde Free, Paraben Free, Sulfate Free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Love it!
Purchased this out of necessity on a budget. I wasn't sure how I'd like it since I was used to using O-plex bonding serum and I'm a stickler to what I know works and while it isn't identical it works very similarly. It has a light botanical-spa scent to it, nothing overwhelming or perfumey. My hair is long and naturally wavy (used to be straight) and it works really well with the texture. Super easy to use, I typically apply it after my leave-in conditioner while my hair is still damp and if I straighten it afterwards too for a little extra shine & protection. I'm pretty sure I use more than what's suggested, but I really love how well it works. I've purchased two bottles now and given the quantity for the price, excellent value, will probably continue to buy. ... show more
Reviewed in the United States on November 16, 2025 by Angie
    • Great product, adds shine
This product is good for adding a little shine and softness after blow drying and styling
Reviewed in the United States on February 24, 2026 by Angela Kelly
    • Bonding hair oil makes my hair shiny and soft
This bonding hair oil works great. Makes my bleached hair shiny and softer.
Reviewed in the United States on March 14, 2026 by Elizabeth O
    • Excellent product
Smells great, light weight and condioned my dry ends
Reviewed in the United States on July 28, 2025 by Marsi Polmonari
    • Like Olaflex, But For Half the Price
This is perfect for your curly hair routine and works like Olaflex, but for half the price. I was on the hunt for a finishing oil for my curl hair routine that was cheaper than the very expensive brand name options and was thrilled with the performance of this one. First, it was not overly scented. I hate using a product and becoming overwhelmed with an artificial scent. This scent was mild and not overpowering. Second, the hair oil was so easily absorbed by my hair. Unlike other products, it didn't weight my hair down, make it look overly greasy or smear all over my sheets and clothing. Third, it easily removed my hair cast without causing frizz!! My hair was so shiny, moisturized, and voluminous after I put this in. Tip-make sure you hair is completely dry before using. This is now an essential step in my hair routine. I add it in right after defusing as the final step. Its the best value for money hair oil I have tried and I have tried around 8 already. ... show more
Reviewed in the United States on January 25, 2025 by Tobi
    • Good product for frizzy hair
Use this everyday. My hair never felt or looked this good. I have frizzy hair but this tames it
Reviewed in the United States on March 7, 2026 by Darlene Garski
    • Sleek and moisturizing
Love this hair oil . Smells fantastic
Reviewed in the United States on February 18, 2026 by MAPA
    • Good product, bad packaging
Review Image by mommysris
Update: The manufacturer, very nicely, refunded my money due to the bad packaging. Oil is nice, good scent. BUT bottle is terrible, cracked as soon as I opened it, fell apart shortly after.
Reviewed in the United States on June 29, 2025 by mommysris

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...