Skip to content

Cart

Your cart is empty

Clinically tested, 2025

Replace your collagen powder.
See results in 8 weeks.

In a clinical study published in a peer-reviewed scientific journal, BOOST’s formula was tested directly against marine collagen. BOOST improved firmness, elasticity and hydration. Marine collagen did not.

Works where collagen forms The dermis ¡ deeper than topicals reach
âœĻ
Two patented actives REGGENERATEâ„ĸ & SkinAx²Ž Lift
âœĻ
Outperformed 8g marine collagen 2 capsules ¡ randomized trial

Frontiers in Nutrition ¡ 2025 ¡ Double-blind RCT

Clinically proven to outperform marine collagen

BOOST (300mg)
Marine collagen (8g)

In an independent randomized controlled trial, 2 capsules of BOOST were tested against 8g of marine collagen daily over 8 weeks. BOOST improved firmness, elasticity, and hydration. Marine collagen did not.

Marine collagen showed no meaningful improvement in firmness or hydration. Elasticity improved by 6.5% — compared to +39% for BOOST.

Source: Frontiers in Nutrition ¡ 2025 ¡ Reggenerateâ„ĸ (MKAREÂŽ) 300mg vs. marine collagen 8g

Switch to BOOST
BOOST by Cellaro
Ready to switch?

Try BOOST for 90 days. Feel the difference, or get your money back.

Clinically studied ceramide complex that works from the inside out. Two capsules a day, no shaker bottle, no chalky taste.

"It gave my skin an inner glow I had not had before."

Sandra K., verified customer ¡ 30s
  • 90-day money-back guarantee
  • Free EU shipping
  • Cancel your subscription anytime
  • GMP-certified manufacturing
American Express Apple Pay Bancontact Google Pay Mastercard Visa

Visible results in 8 weeks.

Consumer perception study ¡ 8 weeks

78%
Firmer skin
76%
Improved elasticity
71%
Better hydration

Consumer perception study. 8 weeks of daily supplementation.

Why it works

The supplement that outperformed collagen powder in a clinical trial.

Collagen powder

Breaks down before it reaches your skin. It dissolves into generic amino acids in your stomach — your body sends them wherever they are needed most, which is rarely your skin.

BOOST

Arrives ready to work in the dermis. Collagen, elastin, and hyaluronic acid already structured the way your skin cells recognise and use them. No reassembly. No detour through digestion.

BOOST by Cellaro — skin results

The Formula

Precision-formulated for skin renewal from within

Aging begins in the dermis, not on the surface. Six clinically chosen actives, each targeting a different stage of the renewal process — working as one complete system.

REGGENERATE

REGGENERATEâ„ĸ

Rebuilds the structure collagen lives in

Read more

Eggshell membrane delivers collagen, elastin, and hyaluronic acid in the form your skin uses directly. Clinically shown: +44% firmness, +39% elasticity, +40% hydration in 8 weeks.

SkinAx

SkinAx²Ž Lift

Activates your skin's own collagen production

Read more

Grape polyphenols and melon SOD switch on the fibroblasts that build new collagen. Where powder supplies raw material, SkinAx activates the factory that uses it.

Hyaluronic Acid

Hyaluronic Acid

Fills the space collagen fibres live in

Read more

Low molecular weight HA reaches the dermis, holding water between collagen and elastin fibres. A cream stays on the surface. This goes where hydration is structural, not cosmetic.

Ceramides

Ceramides

Seals the barrier so results hold

Read more

Plant-derived ceramides reinforce the skin barrier from within, reducing moisture loss so improvements happening deeper in the dermis can accumulate over time.

Astaxanthin

Astaxanthin

Protects what you are building

Read more

One of the most potent antioxidants known. It neutralises UV and environmental stress that degrades collagen faster than your skin can replace it.

Vitamin C

Vitamin C

The cofactor collagen cannot form without

Read more

Chemically required to stabilise the collagen triple helix. Without it, the collagen your skin produces is structurally unstable. BOOST includes it to complete the synthesis pathway.

Six actives. One complete system. Two capsules a day.

Switch to BOOST

The dose that outperformed 8g of marine collagen

Two capsules a day. That's it.

2 capsules vs. 2 scoops

Eggshell membrane delivers collagen, elastin, and hyaluronic acid in a natural matrix your body recognizes and absorbs directly.

What our customers say

Why people are switching from collagen powder.

★★★★★ 4.8 · Trusted by Cellaro customers
★★★★★

Friends noticed before I did

My friends noticed my skin looked clearer. That's when I knew it was working.

Abigail B. ¡ 50s

Verified Customer

★★★★★

Two compliments in one week

Two people this week asked what I was doing differently with my skin.

Theo L. ¡ 50s

Verified Customer

★★★★★

The inner glow I couldn't get from skincare

It gave my skin an inner glow I had not had before.

Sandra K. ¡ 30s

Verified Customer

★★★★★

Works where my skincare couldn't reach

Now an essential part of my morning routine. Works where nothing else can reach.

Caroline L. ¡ 40s

Verified Customer

MAKE THE SWITCH

Replace your collagen powder.
See the difference in 8 weeks.

Two capsules. Not two scoops.

BOOST by Cellaro
Subscribe and save Most popular
761 kr 895 kr /month ¡ cancel anytime
SAVE 15%
One-time purchase
895 kr ¡ 60 capsules ¡ 1 month supply
90-day guarantee. No questions asked.
Free shipping
Cancel anytime
GMP certified
Secure checkout American Express Apple Pay Bancontact Google Pay Mastercard Visa

Made in Germany ¡ GMP certified ¡ Third-party lab tested ¡ Contains egg (eggshell membrane). Not suitable for people with an egg allergy.

Your skincare routine works from the outside in. BOOST works from the inside out, targeting the dermis, where collagen, elastin, and hydration are formed and preserved.

Creams, serums, and SPF protect and treat the surface of the skin. But they do not reach the dermis, where skin structure is built. BOOST delivers six clinically studied active ingredients to support firmness, elasticity, deep hydration, and skin barrier integrity from within.

It does not replace your skincare routine. It complements it from within, helping everything you already do work from a stronger foundation.

Clinically shown in a randomized controlled study: +44% firmness, +39% elasticity, +40% hydration in 8 weeks.

Take 2 capsules every morning, with or without food.

Results build over the first 8 weeks as the dermis remodels. To maintain improvements in firmness, elasticity, and hydration, continue taking BOOST daily. As with other nutritional support, lasting results depend on consistent use.

Recommended routine: BOOST in the morning, followed by your antioxidant serum and SPF. Support from within combined with surface protection creates more lasting results.

Contains egg, in the form of eggshell membrane. Not suitable for people with an egg allergy. Formulated for healthy adults. If you are pregnant, breastfeeding, or taking medication, consult your doctor before use.

Dermal matrix

REGGENERATEâ„ĸ eggshell membrane ¡ 300 mg

Provides the complete structure collagen needs to form and last

Collagen powder is broken down into amino acids in the gut. REGGENERATEâ„ĸ provides what the dermis actually needs: natural collagen, elastin, hyaluronic acid, and glycosaminoglycans, in a form the skin recognizes and can use directly. This is the structure collagen fibers rest within. Clinically shown to help support +44% firmness, +39% elasticity, and +40% hydration in 8 weeks.

Contains egg

Collagen synthesis

SkinAx²Ž Lift ¡ 200 mg

Activates collagen production at the cellular level

Collagen powder provides raw material. SkinAx²Ž Lift does something different: it activates the fibroblasts that actually build new collagen. Where powders rely on passive absorption, SkinAx²Ž Lift triggers active synthesis. It also helps protect against collagen breakdown and supports skin radiance and structure.

Dermal hydration

Hyaluronic acid ¡ 120 mg

Fills the space where collagen fibers live

Deep in the dermis, hyaluronic acid binds water between collagen and elastin fibers, giving skin density, resilience, and bounce. A hyaluronic acid cream sits on the surface. BOOST uses low-molecular-weight hyaluronic acid, selected for its ability to reach the dermis. That is where hydration becomes structural, not just cosmetic, and where it lasts.

Barrier integrity

Ceramides ¡ 30 mg

Preserves hydration while structure is rebuilt

The barrier is what prevents the dermis from losing moisture faster than BOOST can rebuild it. Plant-based ceramides replenish the lipid layer from within, reduce water loss, and help preserve the results happening deeper in the skin. A stronger barrier means better results over time.

Antioxidant protection

Astaxanthin ¡ 6 mg

Protects the collagen you build from breaking down

Building collagen matters less if oxidative stress breaks it down faster than the skin can replace it. Astaxanthin is one of the most powerful antioxidants and helps neutralize UV and environmental stress that breaks down collagen fibers. BOOST builds. Astaxanthin protects what is built.

Collagen cofactor

Vitamin C ¡ 80 mg

Without it, collagen cannot form correctly

Vitamin C is not optional for collagen synthesis. It is chemically required as a cofactor for the enzymes that stabilize collagen's triple helix. Without enough vitamin C, the collagen the skin produces becomes structurally unstable. BOOST contains vitamin C to help ensure the entire synthesis process is complete.

SkinAx²Ž Lift is a registered trademark of ACTIV'INSIDE. REGGENERATEâ„ĸ is a registered trademark of Circul'Egg.

Outperformed 8 g marine collagen at 300 mg ¡ Randomized clinical study ¡ Frontiers in Nutrition 2025

Frequently asked questions

How is BOOST different from collagen powder?

Collagen powder adds raw material: amino acids your body must reassemble from scratch. Most of it never reaches your skin. BOOST works on the environment that determines whether collagen can form and last. It rebuilds the dermal matrix: the elastin, hyaluronic acid, and glycosaminoglycans that collagen fibres anchor into.

Can I take BOOST instead of my collagen powder?

Yes. BOOST is designed as a direct replacement, not an addition. It stimulates your skin to produce its own collagen and gives that collagen somewhere to anchor and last. You do not need to take both.

How long until I see results?

The clinical trial ran for 2 months. Consumer perception data shows most women notice improvements to firmness, hydration, and elasticity within 6 to 8 weeks of daily use. Consistency matters more than timing.

What is Reggenerateâ„ĸ and why does it matter?

Reggenerateâ„ĸ (MKAREÂŽ) is a patented eggshell membrane extract studied in a 2025 double-blind randomised controlled trial published in Frontiers in Nutrition. At just 300mg, it outperformed 8g of marine collagen across all three skin measures: firmness (+44.7%), elasticity (+39.3%), and hydration (+40%). It is the primary active in BOOST.

What is SkinAx2 Liftâ„ĸ?

SkinAx2 Liftâ„ĸ is a clinically studied blend of two active compounds: grape polyphenols and melon-derived superoxide dismutase (SOD). Together they support collagen synthesis and protect skin cells from oxidative stress, which breaks down collagen faster than your skin can rebuild it.

How do I take BOOST?

2 capsules daily with water. No scoops, no mixing, no chalky texture. Take them at the same time each day for best results.

Is BOOST suitable for vegans?

No. BOOST contains Reggenerateâ„ĸ, which is derived from eggshell membrane. It is not suitable for vegans or anyone with an egg allergy. Please check the full ingredient label before use.

Where is BOOST made and tested?

BOOST is manufactured in Germany to pharmaceutical-grade standards. Every batch is independently tested by a third-party laboratory for quality, purity, and label accuracy.

What does the subscription include and can I cancel?

Subscribing saves you 15%, bringing the monthly cost from â‚Ŧ80 to â‚Ŧ68. Your supply ships automatically each month. You can pause or cancel any time with no minimum commitment.

Is there a money-back guarantee?

Yes. BOOST comes with a 90-day money-back guarantee. If you complete three months of daily use and do not notice a difference, contact us for a full refund. No hoops, no questions.