A1 Vitamin A Power 1 Serum

Name: A1 Vitamin A Power 1 Serum
Brand: Sarah Chapman
SKU: 1102
Price: 90.0 GBP
Availability: InStock

YOUR SKIN'S REWIND BUTTON FOR COMPLEXION PERFECTION

£90.00

Strength:

Moderate

Moderate Expert

A targeted serum, designed to accelerate skin renewal while maintaining hydration and barrier strength.

Complimentary express tracked shipping on orders £40+

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The A1 Vitamin A Power 1 Face Serum (30ml) harnesses the incredible benefits of two forms of Vitamin A (Retinol and Retinal) and EGF Peptide Growth Factor to bring you closer to age-defying rejuvenation. Expect firmer, smoother and healthier skin.

Powered by our exclusive TTS³ technology.

Clinically Proven Results

100% said skin tolerated product well.*
96% said skin felt firmer in two weeks.*
Wrinkle depth reduced by 9% in two weeks.**
93% said their skin felt smoother in two weeks.*

100% showed plumped, lifter and firmed skin in four weeks.**
Wrinkle depth reduced by up to 44% in four weeks.**
100% said skin texture had improved.*
90% said pores appeared less visible.*

Supercharged Actives

2 forms of vitamin A, Retinol and Retinal help stimulate cell renewal and encourage the production of collagen and elastin, leading to plumper, smoother skin and reduced fine lines and wrinkles
EGF Peptide Growth Factor boosts vitamin A activity through synergistic effects while supporting the skin’s natural reparative process

*Results based on an independent clinical consumer trial
**Results based on an independent clinical instrumental trial

DESCRIPTION

A1 Vitamin A Power 1 offers an intelligent, new approach to retinoids powered by our exclusive TTS³ technology.

Specially formulated for skin already acclimatised to retinoids, this moderate-strength serum harnesses the incredible benefits of Retinol and Retinal while unlocking a powerful synergy between vitamin A and EGF Peptide Growth Factor. As a result of enhanced retinoid activity, which stimulates cell renewal and healthy collagen production, the complexion is transformed: fine lines and wrinkles are minimised, firmness is restored, pores are refined, and texture is smoother.

Lightweight and readily absorbed, A1 can be seamlessly incorporated into any nighttime routine and used in tandem with other products.

HOW TO APPLY

Apply 1-2 pumps at night after cleansing, avoiding the eye area. Follow with eye cream and nighttime moisturiser. Always wear SPF during the day while using this serum.

First-Time Vitamin A Users

If you're new to retinoids, we would recommend taking a slow, phased approach to A1. To gradually build up tolerance, start by applying the serum twice a week and monitoring how skin reacts before increasing usage. If any irritation or discomfort occurs, consider reducing frequency of use.

Regular Vitamin A Users

If your skin is already acclimated to the effects of retinoids, apply A1 every night for optimal results. To minimise risks of skin sensitisation, avoid using multiple retinoids simultaneously.

THE POWER OF TTS³

Informed by over 15 years of forward-thinking product and treatment innovation, TTS³ amplifies the efficacy and bioavailability of key skincare ingredients while protecting and reinforcing the skin barrier.

Up to 12x more actives are delivered to targeted sites within the skin

TTS³ features a deep delivery system adapted from medicine. Thanks to the system’s 6-point biomimetic encapsulation, active ingredients reach targeted skin sites with superior precision and are up to 20x more effective than free-form actives, which are susceptible to degradation and require a higher concentration to deliver the same results.

Formula base acts like a second skin for optimal absorption

Every TTS³-powered formula benefits from a biomimetic lamellar emulsion – a technological base that mimics the skin’s structure. Since it has a natural affinity with the skin, it allows for better penetration of each formula’s active ingredients while supporting the barrier function, key for optimal skin health.

Key ingredients work in synergy with hero actives to provide superior results

To further increase the efficacy of hero actives, TTS³ harnesses the power of ingredient synergy. Studies have shown that particular skincare ingredients, when combined, can enhance each other’s performance, leading to greater and faster results while helping promote long-term skin health.

INGREDIENTS

Supercharged actives: Retinol, Retinal, EGF Peptide Growth Factor

Full ingredients: Aqua (Water), C15-19 Alkane, Pentylene Glycol, Polyglyceryl-10 Stearate, Glycerin, Squalane, Limnanthes Alba (Meadowfoam) Seed Oil, Phosphatidylcholine, Mannitol, Carbomer, Polyglyceryl-10 Laurate, Lysolecithin, Caprylic/Capric Triglyceride, Sodium Gluconate, Xanthan Gum, Parfum (Fragrance), Lecithin, Cetyl Alcohol, O-Cymen-5-Ol, Retinol, Sodium Benzoate, Potassium Sorbate, Tamarindus Indica Seed Gum, Tocopherol, Pistacia Lentiscus (Mastic) Gum, Decyl Glucoside, Sodium Hydroxide, Tocopheryl Acetate, Caesalpinia Spinosa Gum, Glucose, Sodium Chloride, Citric Acid, Oryza Sativa (Rice) Hull Powder, Retinal, Glyceryl Caprylate/Caprate, Dipotassium Phosphate, Potassium Phosphate, Oligopeptide-1, Citronellol, Limonene, Linalool, Benzyl Salicylate

A1 Vitamin A Power 1 Serum

£90.00

Frequently Asked Questions

Where does A1 fit into my skin routine?

A1 is a nighttime serum that helps stimulate cell regeneration and boost the production of collagen, elastin and hyaluronic acid for a plumper and tighter complexion. Apply it in the evening after cleansing and allow it to absorb before following with eye cream and moisturiser.

Is this suitable for sensitive skin?

If your skin is prone to sensitivity or you haven’t used retinoids (vitamin A) before, we suggest taking a slow, phased approach to A1. Start with a biweekly application and monitor how your skin reacts before increasing the frequency of use. If you've been diagnosed with a skin condition like eczema, rosacea or contact dermatitis, we recommend talking to your doctor or dermatologist before proceeding with any active ingredients.

Do I need to wear SPF with A1 serum?

Yes, wearing SPF every day is essential if you’re applying A1 at night. This serum is formulated with two forms of vitamin A (Retinol and Retinal), which can break down when exposed to UV rays and make skin more sensitive to sunlight by speeding up the rate at which skin cells turn over. For SPF, we recommend using our tinted or invisible Skin Insurance face sunscreen.

Is it vegan and cruelty-free?

Yes, like all Sarah Chapman formulas, A1 is 100% cruelty-free. It’s also vegan and free of SLES, SLS and petrolatum/paraffin/mineral oil.

What skincare concerns does A1 serum address?

A1 is specially formulated to help minimise and smooth signs of ageing – like fine lines, wrinkles and age spots – and address loss of firmness.

Can I use A1 and C1 serums at the same time?

If your skin is already acclimated to vitamins A and C and combining the two active ingredients is part of your current daily routine, proceed with applying C1 in the morning and A1 at night for optimal results. For first-time vitamin A and vitamin C users, we recommend gradually introducing the serums into your skincare, starting with a biweekly application. If you notice any signs of irritation, try alternating days until your skin acclimates.

Is the packaging recyclable?

Yes, A1’s carton, bottle and lid are fully recyclable and easy to dispose of after use.

This Vitamin A serum is highly praised by customers for being gentle yet effective. Shoppers said it's "mild" and works well on sensitive skin without irritation or dryness. Customers noted reduced wrinkles, smoother skin, and improved pores. One cautioned those with sensitive skin to start slowly with amount used.

Best retinol product ever!! Skin feels alive and smooth with lines definitely less noticeable
Does not cause dryness and flakiness, and keeps skin hydrated all night
Great on my sensitive skin - I'm impressed

5 stars: 9 (82%)
4 stars: 1 (9%)
3 stars: 1 (9%)
2 stars: 0 (0%)
1 star: 0 (0%)

so good！

so good！very mile not strong i use it every two days

Dear Customer,

Thank you for sharing your feedback.

We’re delighted to hear that you’re enjoying the product and that you find it gentle and easy to incorporate into your routine.

Best wishes,
Jack
Sarah Chapman Customer Care

Great on my sensitive skin

I got this as a sample and I have to say I’m impressed; might purchase the full size soon

Dear Pam,

Thank you for your feedback!

We’re always aim to make our products as acciabile as possible so we are thrilled our product works well on your sensitive skin.

We hope you enjoy the full size just as much.

Warm regards
Jack
Sarah Chapman Customer Care

Pore improvement

Great pair with overnight facial

Hi Ho,

Thank you for your feedback

We’re so glad to hear you’re seeing improvements with your pores. Pairing it with the Overnight Facial is a great way to boost results.

We love that you’ve found a combination that works for you.

Warmest wishes
Jack
Sarah Chapman Customer Care

Very Nice!

This is a lovely serum. It goes on nicely and I experienced absolutely no irritation.

Dear Monica,

Thank you for your kind review of our A1 Vitamin A Power 1 Serum!

We’re so pleased to hear you’re enjoying the serum and that it applies so beautifully without any irritation. It’s wonderful to know it’s been a gentle yet effective addition to your skincare ritual.

Warm regards
Jack
Sarah Chapman Customer Care

Great serum after a few days of use my wrinkles were less noticeable and my make up looked flawless
Works well with the overnight serum

Good

This is a great product, but you need to get used to it in advance if you have sensitive skin, and you need to control the amount you use at first.

Best retinol product ever!!

I have tried loads of things over the year and this is absolutely amazing, skin feels alive and smooth with lines definitely less noticeable

Fantastic

I think this is a fantastic product. Having previously used Tretinoin and suffered dryness and flakiness for years, I really appreciate this formulation which does not cause such side effects, and keeps skin hydrated all night.

A1 Vitamin A Power 1 Serum

new to me, so pleased i have tried this

A1

It’s a fabulous product recommended in store. I have super sensitive skin and eyes and have had no problems with this and use I pump each night

Skin is Soft and Smooth

My skin is already acclimatised to retinoids. The texture is soft and melts into your skin and it is not sticky.
My skin feels smoother already. Would highly recommend for those that are used to Retinol.

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