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Hyaluronic Acid Hydrating Booster
Pai Skincare UK
Pai Skincare UK
Pai Skincare UK
Pai Skincare UK
Pai Skincare UK
Pai Skincare UK
Hyaluronic Acid Hydrating Booster
Pai Skincare UK
Pai Skincare UK
Pai Skincare UK
Pai Skincare UK
Pai Skincare UK
Pai Skincare UK

Hyaluronic Acid 0.3% Hydrating Booster

£19.00

10ml / 0.3 fl.oz

Three molecular weights of Hyaluronic Acid working at different depths for hydration that single-weight formulas can't match. A concentrated booster you drop into any moisturiser for plumper, dewier skin.

Pai Skincare UK

Hydrating

Pai Skincare UK

Plumping

Pai Skincare UK

Barrier Supporting

Pai Skincare UK

Smooths fine lines

Free delivery when you spend £30* | 90-Day returns

Hyaluronic Acid 0.3% Hydrating Booster

£19.00

•

Vegan

•

Powered By Green Chemistry

•

Cruelty Free
Why You'll Love It

HELLO HYDRATION

Supercharge your skincare with this all-natural Hyaluronic Acid booster, a concentrated dose of a best-in-class humectant that holds moisture in. It optimises hydration at different levels in your skin, meaning a more effective barrier and healthy radiance.

This potent pocket rocket combines not one, not two, but three molecular weights of Hyaluronic Acid, sourced from maize by bacterial fermentation. The larger molecules form a protective film on the skin's surface, the medium ones create a moisture reservoir in the upper epidermis, and the smallest get to work on the deeper layers below. The result? A continuous moisture gradient that helps protect skin from transepidermal water loss.

And it's not just HA in here. Hydrolyzed Glycosaminoglycans penetrate even deeper than hyaluronic acid to extend that hydration further, while Blueberry Seed Oil and Avocado Oil deliver omegas and antioxidants to support your skin barrier and keep all that moisture locked in. Prebiotic Inulin feeds the good bacteria on your skin, helping maintain a healthy microbiome.

A word on percentages: you'll see brands shouting about 2%, 5%, even 10% HA. The science tells a different story. Published research shows that just 0.1% HA can significantly improve hydration, elasticity and wrinkle depth. At 0.3%, all three molecular weights are fully dissolved, bioavailable and working together in a lightweight texture that blends seamlessly into any moisturiser. No pilling, no stickiness, no inflated numbers.

Part of our Pai Labs Booster range, giving you concentrated single actives to power up your skincare without irritation. Mix 1-2 drops into your existing moisturiser, morning or evening.

Directions

Add 1-2 drops into your daily moisturiser and apply as normal. That's it. Three molecular weights of hyaluronic acid, working from the surface down to the deeper epidermis, delivered through a product you already love.

You can also apply it neat onto clean, dry skin before the rest of your routine. Works beautifully morning and evening, or whenever your skin feels tight, parched or generally unimpressed with the weather.

Compatible with all Pai moisturisers and plays nicely with other brands too.

Full Ingredients

Aqua (water), Glycerin, Hydrolyzed Glycosaminoglycans, Pentylene Glycol, Persea Gratissima Oil* (avocado oil), Coconut Alkanes, Xanthan Gum, Vaccinium Myrtillus Seed Oil (bilberry), Inulin, Sodium Stearoyl Lactylate, Caprylyl Glycol, Sodium Hyaluronate, Tapioca Starch, Fructose, Tocopherol* (vitamin e), Algin, Hyaluronic Acid, Lactic Acid.

100% natural origin.

*Organic

Recycling

Say no to landfill! Let's recycle everything! - Sarah

Unscrew the dropper and remove it from the bottle. Gently pull the glass pipette out of the dropper. Give the glass bottle and pipette a rinse, then place them both into your household recycling. Pop the dropper and rubber bulb into your Pai mailer to send back to us.

All Pai boxes, cartons, sleeves and inserts can be recycled with your household paper recycling.

The majority of your Pai packaging can be recycled at home, but some components need specialist recycling. We've partnered with a specialist programme to make this as easy as possible for our UK customers.

Keep your Pai mailer box (it can be flat packed for easy storage). Fill it with the packaging elements you can't recycle at home, and clearly label the box RECYCLING. Create your free returns label and drop it off at the post office.

Please note we are unable to accept glass or non-Pai packaging. Glass bottles can be separated and placed into your household recycling.

If you are in the UK and unsure what your local services accept, visit recyclenow.com.

Pai Skincare UK

Key Ingredients

  • Hyaluronic Acid

    A sugar the body naturally produces, Hyaluronic Acid can hold between 10 and 50 times its weight in water, storing it like a reservoir for the skin – giving a long-lasting, moisturising effect. Our all-natural form comes from maize.

  • Broad Spectrum Hyaluronic Acid

    This hero humectant is a must for hydration. But our chemists pushed it to the next level by including a broad spectrum of low to high molecular weight – giving superior skin penetration for maximum moisture.

Sarah Brown, Pai Founder

"Hyaluronic Acid binds water with collagen in the skin’s dermis to trap moisture in – meaning a hydrated, dewy complexion. Our own levels deplete as we age, so adding it back in through our skincare is an efficient way to take over nature’s job. This booster is a trusty tool to keep hydration levels high."

SARAH BROWN
FOUNDER, PAI SKINCARE

Frequently Asked Questions

How do I use this booster?

Add 1-2 drops into your moisturiser (any brand works) and apply as normal. You can use it morning, evening, or both. It's a booster, not a replacement, so it slots into your existing routine without adding an extra step.

What skin types is this suitable for?

All of them. It's designed for dry, combination, normal, and sensitive skin. The formula is non-comedogenic, so it won't clog pores, and every batch undergoes 96-hour human repeat insult patch testing to confirm it won't trigger irritation, even on reactive skin.

What is this booster free from?

The formula is free from fragrance, essential oils, alcohol, parabens, silicones, sulfates, mineral oil, phthalates, dyes, wheat, and gluten. It's 100% natural origin ingredients, COSMOS Natural certified, and contains nothing that would flag as a concern for sensitive or reactive skin types.

Is it safe to use during pregnancy and breastfeeding?

Yes, this booster is confirmed safe for use during pregnancy and breastfeeding. It's 100% natural, free from essential oils and fragrance, and contains no ingredients flagged as concerns for expectant or nursing mothers.

Can I use this booster with other Pai Labs Boosters at the same time?

Yes. Each Pai Labs Booster delivers a single focused active, so you can combine them by adding drops of different boosters into the same moisturiser application. For example, pairing the Hyaluronic Acid Booster with the Peptides or Vitamin C Booster lets you target hydration alongside other concerns in one step.

Why only 0.3% hyaluronic acid when other brands use 2% or more?

Higher isn't better here. Sodium hyaluronate is a powder that forms a thick gel in water, so above roughly 1% it becomes goopy and difficult to use. Published clinical research (Pavicic T. et al., 2011) shows that just 0.1% HA applied twice daily produced around 10% more hydration, 20% more elasticity, and 10% wrinkle depth reduction. At 0.3%, all three molecular weights are fully dissolved, bioavailable, and delivered in a texture that actually works on skin.

What do the supporting oils in the formula do?

Blueberry seed oil delivers omega-3 and omega-6 fatty acids plus tocotrienols (a potent form of vitamin E) that help protect against free radical damage, while staying lightweight and non-greasy. Avocado oil provides vitamins A, D, and E alongside omega fatty acids that closely resemble your skin's own sebum, reinforcing your barrier and helping prevent moisture from escaping.

How is the hyaluronic acid in this booster sourced?

It's produced by bacterial fermentation from maize glucose, not derived from animal sources. The process is COSMOS certified, meeting the strictest standards for natural cosmetics. The entire formula is vegan, cruelty-free (Leaping Bunny certified), and made in Pai's London lab.

Who should choose this booster over a standalone hyaluronic acid serum?

Anyone who wants multi-weight HA without adding a full extra step. You mix 1-2 drops into whatever moisturiser you already use, so there's no layering, no pilling, and no sticky residue. It's also a smarter pick if you've been burned by high-percentage HA serums. Concentrations above roughly 1% create thick gels that can feel goopy on skin, and above 2% they can actually draw moisture out of skin in dry environments.

What makes this hyaluronic acid booster different from other HA serums?

Most HA serums rely on one or two molecular weights, which means they only hydrate at one depth. Pai's formulation uses three distinct molecular weights working simultaneously: high MW forms a moisture-locking film on the surface, medium MW hydrates the upper epidermis, and low MW penetrates to the deeper epidermal layers. Published research confirms multi-weight combinations produce synergistic hydration effects that single-weight formulations simply can't match.

Does this booster contain any prebiotic ingredients and what do they do?

Yes. It contains inulin, a prebiotic derived from chicory root that's included across the entire Pai Labs Booster range. Inulin feeds the beneficial bacteria on your skin's surface, supporting a healthy microbiome that helps maintain optimal barrier function and balanced skin pH.

Overall rating: 4.767635 / 5 from 241 reviews.

AI Generated Review Summary

This Hyaluronic Acid booster is celebrated for its ability to deeply hydrate and plump the skin, offering a noticeable glow and healthy appearance. Customers appreciate its silky, non-sticky texture and its effectiveness in enhancing the moisture barrier. While most users report positive results, some have not yet noticed a significant difference.

Summary topics

  • Skin Feel (21%): Many customers raved about how this product made their skin feel hydrated and healthy as never before.
  • Product Formula (3%): Customers expressed appreciation for the lovely silky formula that makes their moisturiser go farther when mixed together.
  • Fine Lines (5%): Customers expressed appreciation for the hyaluronic formula, as it plumps up the skin and minimizes fine lines.
  • Product Texture (4%): Customers appreciated the texture of the product, describing it as fantastic, lovely, and not sticky.
  • Skin Appearance (7%): It was reported by customers that this product makes their skin look plump, hydrated, and healthier.

Review topics: ["results","improvement","feels","issues","texture","skin","packaging","works","looks","bottle","hydration","lines","formula","consistency","complexion","use","weather","patches","glow","difference","redness","face","booster","addition","pai","hyaluronic acid","moisturiser","drops","serum","à appliquer"].

Review highlights

  • "Love the formula and helps plump skin, helping with them fine lines!" — Michaella T.
  • "The formula was a good consistency and my skin reacted well to the product." — Rita P.
  • "Great booster that made my skin feel and look hydrated." — Rita P.

Reviews

great flex option

"i've got combination skin, thats very linked to my cycle so i like having the flex to add this to my routine on weeks when i know i want more hydration"

— MISS S. (5/5)

Hyaluronic Acid 0. 3% Hydrating Booster

"Use the Hyaluronic Acid Booster daily to keep my skin hydrated. Very effective"

— Sandra M. (5/5)

Love!

"Great added extra to help boost your hydration Especially when the weather is cold and skin feels dry and dehydrated! Love the formula and helps plump skin, helping with them fine lines!"

— Michaella T. (5/5)

This is easy to use

"This is easy to use just put 2 drops into the moisturiser and mix. This boosts hydration after my skin being in the sun and wind. My compexion has improved."

— Karen M. (5/5)

Hydrating booster

"Love it and wouldn't be without it, hydrates my skin like nothing else along with love and height moisturiser just lovely. I will only use pai on my face"

— Elly A. (5/5)

Love it!!

"My skin has never looked better!!"

— Rebecca A. (5/5)

Softening and soothing

"A great little product I use after cleansing and before moisturising. My skin is noticeably smoother and softer."

— Karen F. (5/5)

I love these products!

"Pai products are so gentle and effective on the skin. The boosters and moisturisers are lightweight and soak into the skin. My skin feels so nourished and healthy. I found my forever skincare products!"

— Gemma T. (5/5)

Great booster

"Great booster that made my skin feel and look hydrated. The formula was a good consistency and my skin reacted well to the product. Good sized product and the only slight downside is trying to get that last bit out of the bottle."

— Rita P. (4/5)

Incredibly hydrating

"The Hyaluronic Acid 0. 3% Hydrating Booster is a game changer. My skin is much more hydrated and looks more plump since I started using it"

— Maude W. (5/5)

Q&A

Can I mix this booster with the vitamin C booster?
Hi Nicole, Yes you can absolutely mix these two boosters together. We recommend either mixing them together and applying directly to the skin, or mixing them both into your serum or moisturiser and applying every morning. Pai Customer Experience Team
Bonsoir, Je viens d'acheter le booster à l'acide hyaluronique, afin de le mélanger à la crème Love and haight. Puis-je aussi l'utiliser avec un contour des yeux? Merci d'avance. Bien cordialement, Béatrice Besnier PS. J'aime beaucoup vos produits
Merci beaucoup d'avoir partagé vos commentaires et nous sommes ravis que vous appréciez l'utilisation de nos produits. Ce n'est pas un problème de mélanger votre booster d'acide hyaluronique dans notre hydratant Love & Haight. Il peut être amené jusqu'à l'os orbitaire (la zone osseuse entourant les yeux) et la zone des yeux puisera ce dont elle a besoin. Nous espérons que cela vous aidera ! Pai Customer Experience Team
Bonjour, Ce booster est-il non comedogène et peut-il être utilisé par les peaux acnéiques ?
Salut Maurine ! Notre Booster d'Acide Hyaluronique n'a pas été testé pour son indice comédogène mais les ingrédients ont une bonne affinité avec la peau et conviennent aux peaux à tendance acnéique. Pai Customer Experience Team
Bonjour, Puis-je l'utiliser avec d'autres boosters ? J'utilise peptides, collagène et Vitamine C. Comment l'introduire dans ma routine ? Merci par avance de votre réponse.
Salut Carole! Ce n'est pas un problème de combiner le Booster d'acide hyaluronique avec votre booster existant. Nous suggérons d'utiliser l'Acide Hyaluronique le matin avec le Booster Vitamine C, et d'utiliser les Boosters Peptides et Collagène Vegan le soir. Les boosters peuvent être appliqués directement sur la peau ou ajoutés à votre sérum ou crème hydratante. Nous vous encourageons à expérimenter pour trouver ce qui fonctionne le mieux dans votre routine. Pai Customer Experience Team
Bonjour, quelle différence y-a-t-il entre le booster au collagène et celui à l'acide hyaluronique ? Peut-on les utiliser de façon combinée et qu'est-ce que cela apporte-t-il ? Merci d'avance pour tous ces beaux produits.
Salut Nancy ! Les deux boosters fonctionnent de manière légèrement différente. Notre Vegan Collagen Booster lisse la surface de la peau pour un fini plus lumineux et plus éclatant. Tandis que notre nouveau booster d'acide hyaluronique attire l'humidité plus profondément dans la peau pour un teint rosé et soyeux. Les deux produits peuvent être utilisés ensemble pour un teint lisse ultime. Ils peuvent être ajoutés à votre sérum ou hydratant existant, ou superposés les uns sur les autres et appliqués directement sur la peau. Pai Customer Experience Team
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