Syoss Hair
Syoss brings salon-style haircare to at-home use. The Skinsli collection includes the full Syoss Repair line - Repair Shampoo and Repair Treatment, both at a generous 680 ml - alongside the Root Rinse Shampoo (680ml) for colour maintenance and the Oleo hair dye range. The Repair line targets chemically damaged, over-processed, or heat-stressed hair with a professional keratin-based repair complex. At 680 ml, the shampoo and treatment last substantially longer than standard 250-400 ml salon retail formats. Syoss is produced by Henkel using the same raw material sources as the Schwarzkopf professional range.
By Skinsli editorial Updated
Buying guide
Buying Guide: Syoss Hair Care
Syoss combines hair colour and hair treatment products in one brand system. This guide covers the hair care products available on Skinsli - the Repair Shampoo, Repair Treatment, and Root Rinse Shampoo - and explains how they interact with the Oleo dye range to maintain both hair health and colour vibrancy.
Syoss: Henkel Professional Chemistry for Home Use
Syoss is Henkel's professional-to-consumer hair brand. Henkel owns Schwarzkopf Professional and Wella, two of the most widely used professional salon brands globally. Syoss draws on the same raw material supply chain and formulation approach, scaling down from salon-quantity packaging to consumer formats. The 680 ml bottle size on the Repair Shampoo and Repair Treatment is atypical for consumer retail - most drugstore shampoos are 250-400 ml - and reflects Syoss's positioning as a higher-volume, salon-proximity product for home use.
Repair Shampoo 680ml: Daily Cleanse for Damaged Hair
The Repair Shampoo (680 ml) targets chemically processed, heat-damaged, or mechanically stressed hair. The formula uses a keratin-bond repair complex to cleanse while depositing strengthening agents along the hair shaft. Unlike standard shampoos that strip the hair surface without depositing active ingredients, the Repair Shampoo provides a repair benefit at the cleansing step without requiring an additional treatment product. At 680 ml and once-daily shampoo use, the bottle provides approximately three to four months of supply for shoulder-length hair. It is sulphate-reduced rather than completely sulphate-free, balancing effective cleansing with gentler handling.
Repair Treatment 680ml: Deep Repair After Shampoo
The Repair Treatment (680 ml) applies after the Repair Shampoo as a leave-on or rinse-out conditioning treatment. Unlike a standard conditioner, which primarily provides surface slip and detangling, the Repair Treatment penetrates the hair shaft to address structural damage from bleaching, perming, or heat styling. The 680 ml format is generous enough for generous application on thick or long hair without rationing. Use two to three times per week for ongoing maintenance or daily for hair in severe repair stage. The Repair Shampoo and Repair Treatment are designed to be used together as a paired system; using the Repair Treatment after any other Syoss shampoo is also compatible.
Root Rinse Shampoo 680ml: Colour Maintenance for Dyed Hair
The Root Rinse Shampoo (680 ml) maintains colour vibrancy and manages colour-treated hair between dye applications. Colour-safe shampoos use milder surfactants that clean without aggressively stripping dye molecules from the cuticle; the Root Rinse formula is optimised for this. The 'Root Rinse' positioning suggests it addresses root pigmentation and regrowth management - rinsing along the root area specifically to maintain even colour distribution. At 680 ml it is the same large-format size as the Repair Shampoo, making it the practical daily shampoo option for anyone who regularly uses the Syoss Oleo dye range.
Using Syoss Hair Care with the Oleo Dye Range
The Syoss range on Skinsli is designed as a complete hair system: colour with the Oleo dye, maintain with the Root Rinse Shampoo, and repair with the Repair Shampoo and Treatment. After an Oleo dye application, the Root Rinse Shampoo preserves the colour in daily washing; the Repair Treatment addresses any dryness or texture change from the oxidative colour process. For users who both colour and have damaged hair, alternating the Root Rinse and Repair Shampoos - or using the Root Rinse for daily washing and the Repair Treatment two to three times per week - covers both maintenance goals without switching between brands.
The 680ml Format: Professional Volume at Consumer Price
The 680 ml bottles in the Syoss range provide approximately 2.5 to 3 times the volume of a standard 250 ml consumer shampoo bottle. For regular users who wash hair three or more times per week, the cost per wash from a 680 ml bottle is substantially lower than buying multiple small bottles. The 680 ml size also reduces the frequency of reordering. Storage is the only practical consideration: the larger bottle needs space in a shower caddy or shelf. For households where multiple people use the same shampoo or treatment, the 680 ml format is the most economical option in the Syoss range.
Which Syoss Hair Products Suit Your Hair Type
Chemically damaged or heat-stressed hair: Repair Shampoo + Repair Treatment, used together as a paired system. Colour-treated hair maintained between dye applications: Root Rinse Shampoo as the daily cleanser, supplemented by the Repair Treatment on days when additional conditioning is needed. Oily scalp with damaged ends: Root Rinse Shampoo for the scalp (lighter formula); Repair Treatment on the mid-lengths and ends only, avoiding the roots. Fine hair: use the Repair Shampoo and Treatment in smaller amounts to avoid weighing the hair down, or reserve the Repair Treatment for weekly rather than daily use.
Post-Dye Hair Care: Maintaining the Oleo Colour Result
After an Oleo dye application, wait 48 hours before washing. First wash: use the Root Rinse Shampoo with cool-to-lukewarm water rather than hot; hot water opens the cuticle and accelerates colour fade. Follow with the Repair Treatment to address post-dye dryness. Subsequent washes: Root Rinse Shampoo for colour maintenance, Repair Treatment two to three times per week for ongoing hair health. Avoid clarifying or deep-cleansing shampoos on colour-treated hair; they strip colour more aggressively than the Root Rinse formula.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
Is the Syoss Repair Treatment 680ml a rinse-out conditioner or a leave-on treatment?
The Repair Treatment is primarily used as a rinse-out conditioner applied after shampooing. Apply to wet hair after the Repair Shampoo, leave for two to five minutes, then rinse with cool water. Some users apply a small amount to damp hair post-rinse as a leave-in on the ends; at that application size the formula is light enough to avoid weighing fine hair down. For a deeper weekly treatment, apply to towel-dried hair, leave for 10-15 minutes under a shower cap, then rinse.
Should I use the Root Rinse Shampoo or the Repair Shampoo 680ml for colour-treated damaged hair?
If colour maintenance and repair are both needed, use the Root Rinse Shampoo as your daily cleanser to protect the colour, and the Repair Treatment (not the Repair Shampoo) as the conditioning step two to three times per week. The Repair Shampoo used daily can occasionally outperform the Root Rinse Shampoo's colour-preservation function because its repair surfactants are formulated for damaged hair rather than colour protection. Alternating between the two shampoos on different wash days is also a practical approach.
How long does a 680ml Syoss Repair Shampoo bottle last?
At one application of a 5-8 ml amount (standard for short to medium hair, three washes per week), 680 ml provides approximately four to five months. For long or thick hair using 10-15 ml per wash at the same frequency, the bottle lasts two to three months. The large format is most economical for regular use; infrequent washers will find it outlasts the typical 12-month open shelf life of most shampoos.
Is the Syoss Repair Shampoo and Treatment effective for severely bleached or over-processed hair?
The Repair line is designed for chemically stressed hair, which includes bleached hair. For severely bleached or porous hair, the Repair Treatment at a generous application used as a 10-minute treatment mask rather than a quick rinse-out conditioner provides a more significant repair result. Very severely bleached hair (multiple bleach sessions, bonds visibly compromised) may require a dedicated bond-repair product (Olaplex or similar) in addition to the Syoss system; the Repair Treatment maintains and moderately improves hair condition but does not rebuild broken disulphide bonds to the same degree as dedicated bond-repair treatments.
Can the Root Rinse Shampoo 680ml be used with the OLEO Gold Label Cocoa Brown or Crystal Beige dye?
Yes. The Root Rinse Shampoo is the maintenance cleanser for all Syoss Oleo dye shades, including the Gold Label Satch Cover colours. It preserves the Cocoa Brown and Crystal Beige pigments between dye applications and reduces how quickly grey regrowth becomes visible at the roots by maintaining the colour on the lengths. Use it from the first wash after dyeing.
Will the Repair Treatment 680ml weigh down fine hair?
Applied in excess, the Repair Treatment can weigh down fine hair. For fine hair: use a tablespoon-sized amount from mid-lengths to ends only, avoiding the roots and scalp; rinse thoroughly; and start with once or twice per week rather than daily use. If the hair still feels heavy after rinsing, reduce the amount or leave the treatment on for a shorter time. Most fine-hair users find a moderate amount applied to the ends only works without affecting root volume.
Is Syoss the same quality as professional salon brands like Schwarzkopf?
Syoss is produced by Henkel, the same parent company as Schwarzkopf Professional. The formulations draw on the same raw material knowledge, though professional salon lines use higher active concentrations and some exclusive professional-use actives. Syoss is positioned as a consumer-accessible version of that expertise - not identical to professional range, but significantly closer to salon chemistry than most mass-market shampoos. For home maintenance between salon visits, the Repair Shampoo and Treatment provide a more active result than standard supermarket alternatives.
Are the Syoss products on Skinsli genuine and the same as sold in European markets?
Syoss is an international Henkel brand distributed across multiple markets. The products on Skinsli are genuine Syoss items. Syoss formulations are standardised across markets by Henkel; the Repair Shampoo and Treatment sold on Skinsli use the same active complex as the European and Korean market versions. The product labels may vary by market; all units on Skinsli include the ingredient list for verification.