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The Starter Pack

£59.00 £73.00

Start strong with this happy skin, happy you duo: our buildup buster cleansing gel + best selling treatment lotion


Customise your formula:

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Olive to light brown skin. Light brown to brown hair. Brown or green eyes. Tans easily.
Brown skin. Dark brown to black hair. Dark brown or green eyes. Tans darkly easily.
Dark brown to black skin. Black hair. Dark brown or black eyes. Always tans darkly.
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Our fragrances are 100% non allergenic
*Formulas will have the smell of the natural and biodynamic ingredients
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GREEN BAE - Cleansing Gel: This gel cleans your skin, purges it of all buildup, tones and then rebalances your skin microbiome without leaving your skin dry and screaming for hydration. We don’t call it our bae for nothing.
3.03 fl.oz. | 100 ml


TONIC OH! - Treatment Lotion: Tonic Oh! is like magic in a bottle. It gives you an instant glow and puts the bounce back into dehydrated, dull looking skin. It tones without using drying astringents and refreshes your skin like a tall glass of something chilled on a hot summer day. Cheers!
2.7 fl.oz. | 80 ml

GREEN BAE - Cleansing Gel
Mantra: Deep clean with the gentlest touch.
Immediate benefits: Detoxes. De-zits. Refines.
What to expect over time: Reduction in excess sebum production, balanced skin microbiome, relief for acne.


TONIC OH! - Treatment Lotion
Mantra: A vitamin shot for the skin.
Immediate benefits: Illuminates. Calms. Nourishes.
What to expect over time: Even skin tone, stronger skin barrier, increase in skin micro-nutrition levels.

GREEN BAE - Cleansing Gel

Power ingredients:
Vitalised water, Cucumber extract, Salicylic acid, Cannabis oil, Allantoin, Almond oil, Propolis extract, Orange blossom water, Tea tree oil.

Free of:
Prejudice, Sulfate detergents (SLS, SLES), Mineral oils, Silicones, Plastic powders, Parabens, DEA, TEA, Phthalates, Allergens.


TONIC OH! - Treatment Lotion

Power ingredients:
Vitalised water, Acerola extract (rich with natural vitamin C), Sodium Hyaluronate, Salicylic acid, Panthenol (provitamin B5), Vitamin E, Lactobacillus/Rye Flour ferment filtrate, Active juice detox (mix of ginger, lemon and orange juice), Distilled rose water, Distilled Mint water, Hydrolyzed rhizobian gum, Alpinum flower leaf extract, Honey extract, Barbary fig flower extract, Devil’s claw extract.

Free of:
Prejudice, Silicones, Sulfate detergents, Mineral oils, Parabens, DEA, TEA, Phthalates.

GREEN BAE - Cleansing Gel
Apply a dime-sized amount over wet face and neck. Massage for 20 seconds.
Rinse thoroughly and pat dry.
If you want to remove heavy makeup, we recommend using our cleansing oil before using this gel.
Can be used daily. AM, PM.


TONIC OH! - Treatment Lotion
Apply after cleansing/exfoliation and massage until all the actives have been fully absorbed.
That slightly sticky feeling you get? That’s all the actives doing their work to get you a glowy, toned skin. Now, sit back and enjoy the glow.
Can be used any time of the day.

Customer Reviews

Based on 4 reviews
Phototype: Phototype V (Brown skin. Dark brown to black hair. Dark brown or green eyes. Tans darkly easily)
Skin concern: Hyperpigmentation, Dark Circle Under Eyes, Dull Skin
Skin Type: Combination
Age: 25 to 39
The Starter Pack

My new favourite skincare brand!!
The fragrance is fantastic, the product came so quickly following my online order and most importantly the products are amazing. Compared to previous products I have used, this feels less harmful and more aligned with my skin type. I could feel the difference within the first few weeks of use and others noticed it too. I’ve often found that toners in particular are too harsh on my skin but the 456 one was just perfect. Will certainly be a regular user of the products :)

Phototype: Phototype IV (Olive to light brown skin. Light brown to brown hair. Brown or green eyes. Tans easily)
Skin concern: Inflammation, Acne Scars, Fine Lines
Skin Type: Dry
Age: 40 to 60
Glowing skin!

Thank you 456 for making my skin glow again! I am so happy with my skin since I am using your routine. The result is truly amazing!

Absolutely love it!!!

I’m obsessed with these products! I love the fact that it is made especially for my skin type and personalised for the issues that I’ve been having with my skin. I’ve also actually seen a difference in my skin - both clarity and tone. I’ve found my new skincare brand for sure!


The products irritated my sensitive skin so I had to stop using them, I am very disappointed as for me they cost a lot of money.

Custom made for you

All our products are made to order by our team of skin experts in our own lab based in the French Cosmetics Valley.

Optimal freshness

Fresher ingredients make higher performing products. We source sustainable ingredients in smaller batches that are re-tested for purity. Every formula is made-to-order and delivered fresh. 

The Starter Pack

£59.00 £73.00


  • When will I receive my products?

    On average your products will be with you within 5 to 7 days. All our products are made-to-order in our lab in France. Depending on the demand, your order will be prepared within 48h and delivered to you by our preferred carriers. You'll receive a confirmation email with tracking information as soon as your products ship.

  • Are 4.5.6 products natural?

    Our products are made with over 90% of natural ingredients. We use a combination of natural, organic, vegan, science backed and prejudice free lab-made ingredients to create the most efficient products. We carefully select biodynamic ingredients that are not compromised during their extraction, fabrication or conservation process.

  • How long will my 4.5.6 products last?

    Because our products are freshly made-to-order, we have a recommended 6-month period of use from the date of manufacture. Our advanced conservation system is made to preserve the formula for a 12 month-period but in all transparency, using your formula within 6 month of the purchase period is best to ensure you benefit from the freshness of our high quality active ingredients and get the full performance of your products.


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