XCell B

XCell B

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  • Advanced formula with 21% niacinamide

  • Increases ceramides to promote a luminous glow

  • Hydrates skin and strengthens barrier function

  • Reduces breakouts and congestion by regulating oil flow

  • Stimulates collagen to reduce fine lines and wrinkles


An advanced vitamin B3 serum fortified with 21% niacinamide and super antioxidant superoxide dismutase (SOD) to fight free radicals w...

An advanced vitamin B3 serum fortified with 21% niacinamide and super antioxidant superoxide dismutase (SOD) to fight free radicals while strengthening barrier function and boosting water-holding skin lipids. As your essential multitasking cosmeceutical, XCell B regulates oil flow, addresses lines and uneven skin tone for luminous, dewy skin.

Synergie Skin's Vitamin B suite includes the following formulations:

 Vitamin B (Niacinamide 13%, moderate potency, no irritation profile). This product is the recommended Vitamin B serum for new users and those with sensitive skin. 

 XCell B (Niacinamide 21%, high potency, low irritation profile).  

 Priority B (Niacinamide 22%, high potency, low irritation profile). This product is not available online and is exclusively prescribed by Synergie Practitioners. 

Recommended for

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All skin types and conditions

Good to know

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• Vegan

• Nut free

• Gluten free 

• Safe for pregnancy

• Australian made

• pH 5.5 - 6.5

Key ingredients

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Niacinamide (vitamin B3)
Stimulates epidermal skin barrier lipid (ceramides) production resulting in increased hydration and decreased TEWL (Trans Epidermal Water Loss). It also stimulates barrier proteins such as keratin, involucrin and filaggrin essential for optimal barrier functioning and, because of this, decreases inflammation and increases protection from environmental  damage. 

Niacinamide addresses pigmentation by preventing the transfer of melanin from the melanocyte to the keratinocyte and there is continued research into the findings that niacinamide can prevent the immune system being supressed by sunlight. It can stimulate collagen production (B3 is a precursor of collagen) as well as regulate sebaceous lipid production and therefore the severity of acne lesions.

Superoxide dismutase (SOD)
Superoxide dismutase (SOD) is an enzymatic antioxidant, bioidential to SOD found in human cells. SOD is well know for its role in neutralising the superoxide free radical. It is widely believed that SOD can enhance sunscreen products and protect against the damaging effects of the environment. Environmental effects increase the number of free radicals the body encounters. SOD is a free radical scavenger and balances out the number of excess radicals, ultimately protecting the skin from unnecessary damage. SOD soothes the skin and helps combat against photoageing, leaving the skin healthy and more radiant. 

Additional ingredients
The formulation also contains Sodium PCA, betaine and pro vitamin B5 (panthenol) to hydrate, protect the skin barrier, reduced skin irritation and improve skin healing.

A note from Terri

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When I first developed Vitamin B serum, clients were gob-smacked at how their skin transformed and became more luminous within just 2 weeks. This truly is a gamechanger when it comes to improving every skin type and concern. To this day, niacinamide is still my favourite ingredient and now Vitamin B serum users can step-up their daily dose of niacinamide with 21% in XCell B!

Full ingredient list

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Aqua (Purified Australian Rain Water), Niacinamide, Glycerin, Methylpropanediol, Betaine, Panthenol (Vitamin B5), Caprylyl/Capryl Glucoside, Caprylyl Glycol, Sodium PCA, Superoxide Dismutase, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Cymbopogon Martini (Palmarosa) Oil, Sodium Cocoyl Glutamate, Phenylpropanol, Citric Acid, Glyceryl Caprylate, Polyglyceryl-6 Oleate, Maltodextrin, Sodium Surfactin, Caramel (natural colour), Sodium Hydroxide, Geraniol, Linalool, d-Limonene, Citral, Farnesol.

As part of our commitment to innovation, Synergie formulations are updated from time to time. Always refer to the ingredient list on the box for the most current version.


Apply one pump over face and neck.

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