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Frequently Asked Questions

Questions about 28 Day Skin

Who is 28 Day Skin?

28 Day Skin is the brand name for HarJam Innovations Limited. We are a team of medical physicists, formulation chemists and nutritionists who specialise in skin health and have been at the forefront of skincare, nutrition and skintech for over 20 years. Our mission is to improve people’s lives through the innovative synergy of skincare, technology, nutrition and mental health. We call this synergistic therapy.

Are your products clean?

We do not believe in Green or Clean Beauty hype. Ingredients are not intrinsically good or bad. It depends on how they are formulated. Our formulators and nutritionists choose ingredients based on their effectiveness, not on whether they are synthetic, natural, green or allegedly clean. We do not avoid ingredients because they sound scientific and do not include ingredients because they are popular. All our products are formulated and independently tested to comply with all relevant cosmetic regulations.

Why are you against clean beauty?

Clean beauty exploits fear and twists facts to convince consumers that conventional products contain ingredients that are the reasons for their skin ailments while “clean” products are in some way superior because they do not contain these ingredients. This fear-based marketing strategy trains people to trust opinion over fact and marketing over science. We know we all deserve to be treated better than that. 28 Day Skin is strongly against the clean beauty movement.

Are your products green?

We strive to do business in ways that are good for people and the planet. We believe we should protect all stakeholders – workers, customers, suppliers, community and the environment – and not just our shareholders. We use carbon neutral sugar cane derived mailing bags, compostable packaging and our box recycling plan allows all our customers to return their packaging to us for free which we pulp and recycle into hedgehogs homes. When selecting materials, we look at the actual environmental impact rather than the perceived one – some glass is more impactful than plastic for example. In 2020 we sent 0% of our product waste to landfill. We also donate a percentage of our profits to good individual causes and charities. We are an accredited Living Wage Employer.

Do you test on animals?

We promise to never test on animals, nor use derivatives that cause them distress. We stand with Cruelty Free International, The Vegan Society and PETA as a 100% cruelty-free brand, now and always.

Are your products vegan friendly?

Over 90% of products are vegan friendly – we identify vegan friendly products on the individual product pages.

Where are your products made?

We create our own skintech and skincare products entirely from our inhouse state of the art laboratory. We use a UK based contract manufacturer to produce our supplements.

Are your products your own innovations?

Yes. We have a meticulous passion for evidence led innovation and have multiple pending patent applications. In 2019 we introduced in-product patch testing and to date are the only skincare brand to give all its customers free access to patch tests prior to using products. In 2020 we introduced the first all in one double cleanser that didn’t require premixing. In 2021 we introduced Regenesis, a synergy based anti-ageing treatment.

Questions on Regenesis

What is Regenesis?

Regenesis is a skin care system which has been designed by our team of scientists and nutritionists to help reduce the signs of aging through a synergy of photoacoustic therapy, skincare and nutrition.

Why is Regenesis different to other skin care systems?

Regenesis combines phototherapy, acoustic massage, skincare and nutrition to synergistically reduce the signs of aging. This synergy of treatments produces a combined effect greater than the sum of their separate effects.

Why is Regenesis better than using an LED mask?

Red light from an LED mask signals our skin cells to start building collagen, but to build collagen the body needs to have the correct raw materials. Without an optimal supply of these raw materials the skin cells slow collagen synthesis no matter how much signalling light is provided from the LED mask.

Collagen is created by fibroblast cells. These specialised cells use peptides and vitamin C to convert amino acids into collagen proteins. Without peptides, vitamin C and amino acids our body cannot produce collagen.

Regenesis provides all the essential building blocks, both topically and nutritionally, to fuel collagen production and red-light photoacoustic therapy to activate and accelerate the process.

Why is Regenesis better than using a collagen cream?

The skin creates its own collagen – it cannot be delivered to the skin despite the plethora of collagen infused creams and serums available. Collagen and Elastin form the ECM (Extra-Cellular Matrix). This structure can be likened to an elastic mesh (like nylons) and it gives the skin the structure and elasticity it needs. Externally introduced collagen cannot be woven into the ECM.

Regenesis supplements provide the body with the essential building blocks for ECM formation, and then turns on and accelerates the mechanism for collagen production using our innovative photoacoustic technology.

How did you create Regenesis and what proof points can you share?

Our team consists of medical physicists, formulation chemists and nutritionists who specialise in skin health and have been at the forefront of photoacoustic and synergistic therapy for over 20 years. In developing Regenesis we studied hundreds of scientific reports to provide the efficacy of each skincare and nutritional ingredient and used these as proof points to inform our formulation and design. Our phototherapy uses clinically proven parameters for the indications claimed. Third party clinical trials have also been undertaken to prove efficacy and safety of Regenesis. Clinical data to support our claims can be found in our learning centre.

Using Regenesis

Do the treatments hurt?

No, the skincare products and the photoacoustic therapy are both non-invasive.

When should I use my Regenesis treatments for the best overall results?

We recommend you follow the AM/PM plan provided with your product.

Do I need to follow all the steps with each use to get results with Regenesis?

Yes, you do. Regenesis has been designed to work with your natural skin cycle. Your skin recovers and builds in cycles of 28 days so missing a step will prevent the Regenesis from working effectively.

When will I see results?

You are unique and so is the speed at which you will start to see improvements. Most users start to see a reduction in fine lines within 28 days, but it is important to be patient as changes are happening deep beneath the skin’s top layer. Typically, improvements should start to show around 90 days from use. 

Can I get a refund if this does not work?

Given the extensive testing we have performed on Regenesis, we’re firm believers in our product’s efficacy to improve the appearance of ageing. If you are not satisfied after 90 days of using Regenesis, please reach out to us at so we can help make things right.

I have sensitive skin. Will Regenesis treatments and I get along?

Yes, you will get along. We provide a free patch test to test our skincare before use. If you experience any reaction from our skincare products you can return your Regenesis to us for free by emailing

If you do experience mild discomfort in the first week or so, we’d recommend you use your moisturiser on your face before applying the Cell Regeneration Complex (which contains a high concentration of vitamin C) to act as a buffer between the skin and the product. 

If I have a skin condition such as eczema, psoriasis or rosacea, can I use 28DaySkin?

Yes, but please patch test your product prior to use to ensure compatibility with our serums.

Will Regenesis lighten my skin or cause hyperpigmentation?

No, numerous clinical studies have shown that light with a wavelength of 630nm (red light) does not cause hyperpigmentation in skin. [Differences in visible light-induced pigmentation according to wavelengths: A clinical and histological study in comparison with UVB exposure June 2014 Pigment Cell & Melanoma Research 27(5) DOI:10.1111/pcmr.12273. The effects of narrowbands of visible light upon some skin disorders: a review A. J. Greaves First published: 27 December 2015]

Is Regenesis suitable for all ethnicities and skin types?

Yes, the plan has been created to treat and repair every type of skin.

Can I use my retinol cream immediately after using this?

Regenesis can be used alongside Retinol treatments however we recommend that you do not use the Photoacoustic therapy device at the same time of day as a retinol treatment.

Is a 28 Day Skin plan safe for women who are pregnant or nursing?

If you are pregnant or nursing, we recommend you speak with a doctor before starting to use Regenesis.

Can I take antibiotics and be on a 28 Day Skin plan at the same time?

Yes. However, if you are concerned, please speak with a doctor before starting to use Regenesis.

Can I use Regenesis on my body?

Regenesis has been developed for use on the face and neck. Our skin in other areas of the body has different characteristics and Regenesis may be less effective.

Can Regenesis help treat my scars?

Regenesis is not indicated for use on scar tissue, however it is safe to use Regenesis over scar tissue.

Regenesis Photoacoustic Therapy

What is photoacoustic therapy?

Photoacoustic therapy is a combination of red-light phototherapy and acoustic massage. Red light phototherapy enables skin cells to respond better to damage and rejuvenate themselves. Acoustic massage induces shear stresses in the skin to stimulate fibroblast production and help reduce fluid retention and improve lymphatic drainage. The result is an improvement in the skin’s radiance & luminosity, reduction in fine lines and wrinkles and shrinkage of stubborn under eye bags.

Do LED lights really work?

Phototherapy light at 633nm has been clinically shown to help reduce the signs of aging by signalling an increase in the production of fibroblasts, a biological cell that synthesizes the extracellular matrix (ECM) and collagen. It is the ECM and collagen which give the skin its elasticity. Clinical data to support our claims can be found in our learning centre.

How does red light therapy help wrinkles?

Skin cells absorb the red light and produce more adenosine triphosphate, which is the energy source for all cells.  With this extra energy, the cells are signalled to produce more collagen, which gives the skin its elasticity and helps reduce wrinkle severity, fine lines and improving facial texture.

Red light alone only provides only part of the solution – skin cells still require the necessary building blocks to produce more collagen. Regenesis provides all the essential building blocks, both topically and nutritionally, to fuel collagen production and red-light photoacoustic therapy to activate and accelerate the process.

Are LED light therapy treatments good for your skin?

Red light therapy has been shown to increase circulation between blood and tissue cells, increase collagen production (which gives the skin its elasticity) and help protect cells from damage. There have been no documented cases of negative events associated with LED light therapy. Our innovative photoacoustic technology can further help improve skin texture through manual stimulation, stimulate the flow of lymph to reduce fluid retention and decrease puffiness and undereye bags.

Can photoacoustic therapy give you perfect skin?

There is no such thing as perfect or flawless skin, everyone has something they would like to improve. Our genetics principally determine the nature of our skin, but we can help make the best of what nature has given us by adopting a healthy lifestyle (including diet and stress management) and having a good consistent skincare routine (we call this skin synergy). Photoacoustic therapy can help but it cannot give you perfect skin.

Regenesis Skincare

What ingredients are in your Regenesis serums?

Our Regenesis skincare contains a proprietary blend of Vitamin C, Argireline, Copper peptides, Ribose and Amino acids to activate and fuel fibroblast cells to produce collagen and elastin while simultaneously inhibiting the movement of facial muscles. Full ingredient listings can be found on the relevant product page of all our skincare and on packaging.

How do Regenesis serums freeze frown lines?

Our Collagen Boosting Peptide Serum contains a substance called Argireline (acetyl hexapeptide-3 or acetyl hexapeptide-8). Independent Double blind controlled studies have shown Argireline has a muscle inhibiting effect which improves the appearance of fine lines and wrinkles by 15-27%, particularly those around the eyes and on the forehead.

Is your Collagen Boosting Peptide Serum the same as Botox?

Although it is nicknamed “Botox in a jar” and produced from a similar chemical compound Argireline will be significantly less intense compared to Botox. Botox is administered by injection directly to the muscles while Argireline applied as a serum is unlikely to penetrate as effectively through the skin and tissue before reaching the muscles underneath. 

Can I use other skin care products while on a 28 Day Skin plan?

Yes, Regenesis can be used alongside your existing skincare regime. If you are using Retinoids, or any products which might cause photosensitivity, we recommend using these at a different time to Regenesis.

Do I need to cleanse before using Regenesis?

We recommend cleansing before using red light therapy. Clinical data has shown that lack of removal of makeup and oily debris can interfere with the penetration of the light and reduce the effectiveness of light therapy. We recommend our 28 Day Skin Double Cleanser.

Is your skincare cruelty free?

Yes, absolutely 100% cruelty free.

Questions on our Supplements

Will Regenesis only work for me if I'm deficient in these vitamins, minerals and nutraceuticals?

Based on hundreds of independent scientific studies, some Regenesis ingredients have been proven to positively impact skin health when taken in higher doses than the daily recommended intake. This means that even if you are sufficient in one more of the micronutrients, the product will still have a significant impact when taken for 90 days.

Should I take the Regenesis supplement with food?

It’s not completely necessary to take Regenesis supplements with a meal. However, those with sensitive stomachs, or those who typically feel nauseous after taking supplements, may benefit by taking it with a meal.

Do I need to refrigerate the supplements?

There is no need to refrigerate Regenesis supplements. They can be stored anywhere out of direct sunlight and away from sources of heat.

Can I take Regenesis supplements every day without risk?

Yes, Regenesis supplements do not contain any nutrients in quantities that may present a risk to health over prolonged use.

Can I take the supplements if I am on birth control?

Yes, however we recommend you consult with your healthcare professional before taking any supplement.

Is Regenesis vegan?

No, Regenesis supplements contain Marine Collagen derived from fish and so is not a vegan or vegetarian product. We are currently formulating a vegan friendly supplement for release in Q3 2021 – if you’d like to be notified when this available, please email

OK, is your marine collagen responsibly sourced?

It absolutely is. We source our marine collagen from suppliers who obtain marine collagen using sustainable methods.

I heard that to be effective collagen has to be below 5000 Daltons, what size is your marine collagen?

Dalton weight is how collagen is measured and the lower the Dalton weight, the easier it is for the human body to absorb. The industry standard Dalton weight of Collagen is 5,000 and over. Our marine collagen is hydrolysed (meaning it has been already broken down into an easier to digest form) and has an average Molecular weight <3000 Daltons.

Is Regenesis gluten free?


Can I take this in combination with other supplements?

Yes, however we recommend that you try to avoid using other supplements which contain vitamin C and vitamin E over a prolonged period. Always consult with a healthcare professional if you have any concerns about supplement interactions or dosages.

Are the concentrations of these vitamins really enough to have an impact?

Yes, we have used concentrations carefully determined with respect to how much the average person requires in order to optimize their skin. It’s also important to note that supplementation has a cumulative effect and full acclimation can be observed after 90+days of use.

Are these safe if I'm allergic to soy?

Yes, our supplements do not contain Soy.

Do these supplements contain nuts?

No, our supplements do not contain nuts but are produced in a facility that manufactures products which do contain nuts. We do not recommend that our supplements are taken by anyone who has an allergy to nuts.

Is this product non-GMO?

Yes, this product is non-GMO

What are the ingredients of your supplements and their casing?

Our Regenesis supplements contain the following active ingredients per Capsule: Marine Collagen Hydrolysed 350mg, Ascorbic Acid DC Grade 41.3mg providing Vitamin C 40mg, Hyaluronic Acid 30mg, Vitamin E Powder (DL-Alpha-Tocopheryl Acetate) 16.5mg providing Vitamin E 5.5mg. Other Ingredients include Micro Crystalline Cellulose (Bulking Agent), Magnesium Stearate (Anti-Caking Agent), and Gelatin. Full ingredient listings can be found on the relevant product page of all our skincare and on packaging.

Can these be taken with prescription medication?

Regenesis is 100% drug free and in a lot of cases are taken alongside prescription medications. That said, we always recommend you speak with your health practitioner first.

How long does a pack of Regenesis supplements last?

We provide enough supplements to cover your therapy course – either 30 days, 60 days, or 90 days. We may provide these to you in separate deliveries but will always ensure you do not run out of supplements during your therapy – there is no additional charge for us providing you Regenesis supplements over additional shipments.

Where are your supplements manufactured?

All our products are made and packaged under contract in the UK. Our suppliers are certified to IS0 9001, ISO 22000 and GMP standards, and are also independently audited by The Halal Trust and hold certifications from The Vegetarian Society and FDA. All our packaging has full ingredients and supplement breakdowns in line with UK law.

Account Questions

Is it possible to purchase the individual steps of Regenesis?

You can purchase your Regenesis serums and supplements individually from our online store. The Regenesis Photoacoustic therapy device is only available as part of the Regenesis complete product.

What does it mean to be a 28 Day Skin Member?

28 Day Skin members get points for every purchase which can be converted into money off coupons on future orders. In addition, you will be entered into our monthly competitions and giveaways.

How do I manage my account?

You can access your account by clicking the account icon at the top of our website. Your email address and password will be emailed to you during sign up.

How do I track my shipments?

You will receive a tracking reference by email with every order. We typically ship the same day for all orders placed by 2pm Monday to Friday.

How long does shipping take?

We ship the same day Monday – Friday for all orders placed before 2pm. Typically orders placed with standard shipping within the UK take 2-3 business days to arrive. If your orders destination is outside of the UK, please allow 7-15 business days for delivery. As always, send us an email to if you need help with your order.

There’s a problem with my order. How do I get in touch?

Please contact us at for help.

My order was faulty. What are my options?

We’re sorry your items arrived in less-than-perfect condition. Please email and upload 2-3 clear photos of the fault, indicating whether you would prefer a replacement or refund. We’ll get back to you shortly with a refund process or send you out a brand new item. We’ll then email you when the refund has been processed or when your replacement has been dispatched. We always do our best to resolve tickets as quickly as possible.

How do I cancel future shipments?

Email us at

How do I return my products?

While you are welcome to return your order back to us for a full refund, please keep in mind that all returns must be unused (except for any patch tests) to qualify for a full refund. Returns are at the cost of the customer and are unfortunately non-refundable. Please contact us at so we can walk you through your return.

In the case of faulty, damaged or wrongly described items, you will be eligible to choose between a replacement or refund. Faulty items must be declared within 30 days of purchase. Please email and we’ll take you through the process.

What shipping carriers do you use?

We signed for and tracked Hermes and Royal Mail within the UK.

Will my order be subject to duty/import fees?

Any orders sent outside of the UK may be subject to import or duty fees depending on the country you have ordered from. Please reach out to our team at if you have any questions concerning your delivery.

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