Dermatologist Formulated and Owned
Clinically Backed Ingredients
Pro-B Serum
SKINCARE THAT WORKS
Pro-B Serum
Bloc Pro-B Serum
Pro-B Serum
2.0 Pro-B Serum
Pro-B Serum
Pro-B Serum
Bloc Pro-B Serum
Pro-B Serum
2.0 Pro-B Serum
Pro-B Serum

Pro-B Serum

$99.00$99.00
Size
Quantity

repair | hydrate | stabilise

Pro-B Serum is a revitalising niacinamide serum formulated to strengthen your skin barrier, calm irritation, and improve overall skin tone and texture. Designed to enhance resilience and support long-term skin health, it helps your complexion look brighter, smoother, and more balanced.

Additional potent ingredients work synergistically to hydrate, soothe, and revitalise, making this serum suitable for daily use on most skin types, including sensitive skin.

 

Why Niacinamide matters

Niacinamide is a clinically researched ingredient that helps the skin:

  • Protect against environmental stressors

  • Regulate sebum production

  • Improve barrier function

  • Reduce visible irritation, redness, and blotchiness

Suitable for most skin types, particularly:

  • Sensitive or reactive skin
  • Redness or inflammation
  • Uneven skin tone
  • Dull or fatigued-looking skin
  • Aids in minimising enlarged pores.
  • Reduces redness.
  • Promote a more even skin tone.
  • Help uneven texture.
  • Revitalise complexion.
  • Improve the overall health of your skin.

Use AM or PM

Apply 1–2 pumps to cleansed skin morning and evening. Follow with moisturiser and sunscreen during the day. Can be layered under other actives if desired.

Discontinue if irritation occurs. Use within 12 months of opening.

Water (Aqua), Niacinamide, Acetyl Glucosamine, Polyacrylamide, PEG-8 Dimethicone, C13-14 Isoparaffin, Cyclopentasiloxane, PEG-8/SMDI Copolymer, Glycerin,  Cyclohexasiloxane, Laureth-7, Sodium Ascorbyl Phosphate, Sodium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Davidsonia jerseyana Fruit Extract, Palmitoyl Pentapeptide-4, Lavandula angustifolia (Lavender) Oil, Carbomer, Polysorbate 20, Caprylyl Glycol, Ethylhexylglycerin, Hexylene Glycol, Butylene Glycol, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate, Citric Acid, Sodium Lactate, Linalool.

Cooling Face Mask

Buy It With

Cooling Face Mask

$12.00

Out of stock

Gentle Cleanser

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Gentle Cleanser

$49.00

Out of stock

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4.9
Rated 4.9 out of 5 stars
Based on 15 reviews
Total 5 star reviews: 14 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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15 reviews
  • HC
    Helen C.
    Flag of Australia
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 weeks ago
    Lovely serum ! Easy to

    Lovely serum ! Easy to apply and absorbed fast, Best ever ! Would highly recommend

    Was this helpful?
  • TF
    Tegan F.
    Flag of United States
    I recommend this product
    Rated 4 out of 5 stars
    2 months ago
    Gentle yet soo effective -

    Gentle yet soo effective - love these and reordering!!

    Was this helpful?
  • KL
    Kathy L.
    Flag of Australia
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    The Pro-B Serum is part

    The Pro-B Serum is part of the Anti-Ageing Regime Kit I purchased. Before using this product me skin was red and blotchy, now after coming to the end of my first puchase my skin is a lot clearer, redness gone and has a shine about it. I have continued puchasing and I am very pleased with the results.

    Was this helpful?
  • AM
    Annette M.
    Flag of Australia
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Since introducing Bloc skincare into

    Since introducing Bloc skincare into my regime, my skin is responding well. It has calmed & is not reactive as it was some weeks ago.

    Was this helpful?
  • AH
    Aiden H.
    Flag of Australia
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    The Pro-B serum has done

    The Pro-B serum has done me wonders! I was struggling with frequent redness and pimples across my forehead and chin. This serum has resulted in my skin looking so much clearer, in conjunction with the Deep Cleanse cleanser. Could not recommend more!

    Was this helpful?
    Bloc. Skincare
    2 months ago

    Love to hear this!! :u1FA75:

Pro-B Serum

Frequently Asked Questions

  • Yes, this product is suitable for use during pregnancy. Consult your health practitioner if you have any concerns.

  • Niacinamide can be used morning or night - we recommend applying as your first step in your morning or evening skincare routine.

  • Yes, niacinamide can be used everyday. Some people may experience a flare or purge when first introducing niacinamide to their routine. We recommend staying consistent and your skin's barrier will naturally repair and become stable with regular use. If you aren't able to have persistent use and/or niacinamide is irritating the skin too much, you can withhold use completely or introduce at a slower pace.

  • Niacinamide (aka Vitamin B3) is a true multitasker in skincare. It helps evens kin tone, boost hydration, reduce pore appearance, sooth redness and inflammation, strengthens skin barrier as well as anti-ageing benefits.

  • Vitamin B3 is the umbrella term for two forms:

    1. Niacin (nicotinic acid)
    2. Niacinamide (nicotinamide)

    In skincare, niacinamide is the form of Vitamin B3 that's used—it’s stable, non-irritating, and delivers all the glow-boosting, skin-loving benefits. So while all niacinamide is Vitamin B3, not all Vitamin B3 is niacinamide.

  • Niacinamide is generally very well-tolerated—even by sensitive or acne-prone skin—but in some cases, yes, it can cause breakouts or purging, especially when: you're using a high concentration, your skin is adjusting (aka purging), it's reacting with other actives or may be the formula not the niacinamide within the formula.

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Frequently Asked Questions

  • Yes, our products are GMO-free! Genetically modified organisms (GMOs) are primarily associated with food and agricultural products. You might prefer to steer clear of genetically modified organisms, we know the skin can absorb at least part of the ingredients applied to it, it makes sense to avoid these ingredients in our skin care, as well.

  • Yes, all of our products are cruelty-free. Cruelty-free products are those that are developed without subjecting animals to unnecessary testing, emphasising the importance of ethical and humane treatment in the production of cosmetics and skincare items.

  • All of our products are vegan except Pro-Lip Balm.

  • Yes, this product is paraben free. Parabens are a class of preservatives commonly used in cosmetics and skincare products to prevent the growth of bacteria, mould, and yeast. Some individuals choose to avoid products containing parabens due to concerns about their potential links to hormone disruption and other health issues. While parabens have been deemed safe for use in cosmetics by regulatory agencies, some people may prefer to opt for paraben-free products. This choice is often based on personal preferences and individual sensitivities.