Can you get a tan from a tablet?

In our never-ending 追求（する），探索（する） for tanned and beautiful 団体／死体s it seems there's nothing pasty Brits won't try.

The 最新の 製品s to 現れる from this growing market are tanning tablets.

These pills are 分裂（する） into two main groups.

The first type, which 製造者s （人命などを）奪う，主張する should be taken 事前の to, during and after your holiday in 新規加入 to your normal sun cream, are said to give you a quicker, deeper and longer 継続している tan.

The second type are marketed as a way of 保護するing your 肌 from the 損失ing 影響s of the sun - while 許すing you to get the tan you want.

But with some makes costing almost £20 a course will you 簡単に be wasting your money? And what do they 現実に 含む／封じ込める?

Femail.co.uk has 調査／捜査するd the 成分s in the main brands on the market - and asked some of the country's 主要な dermatologists their opinion.

Tablets which （人命などを）奪う，主張する to 高める your tan

Tyrosine

The （人命などを）奪う，主張するs

Tyrosine is an amino 酸性の which helps the 団体／死体 produce melanin - the pigment produced by the 肌 to 保護する us from the 損失ing 影響s of sunlight. It is melanin which makes us look tanned. The theory is that if taken for a period before you go into the sun these pills will 許す your 団体／死体 to be better able to produce melanin and so you will tan more easily. 製造者s （人命などを）奪う，主張する you can therefore get the same 量 of tan with いっそう少なく （危険などに）さらす to the sun - so 原因（となる）ing いっそう少なく 損失 to your 肌. The theory is also that if you continue to take these tablets once you return from holiday your tan will last longer. This 製品 is often 目的（とする）d at people with 極度の慎重さを要する 肌 as 製造者s （人命などを）奪う，主張する it 許すs 使用者s to spend いっそう少なく time in the sun.

The 判決

Professor John 強硬派, 顧問 dermatologist at St Th omas' Hospital in London and a specialist in 損失 to the 肌 by the sun, said; 'I don't think this would have any 影響 on a tan at all. The tanning system is turned on by other stimuli, not by 供給するing more of what makes us tan. There is no 証拠 to 示唆する that having more tyrosine will make you tan better.' Dr Richard Staughtons, 長，率いる of Dermatology at the Chelsea and Westminster Hospital in London, said: 'There is no 不足 of tyrosine in the 団体／死体 anyway. If you 追加する more tyrosine to the 団体／死体, your 団体／死体 will 簡単に get rid of it.'

Para-aminobenzoic-酸性の (PABA)

The （人命などを）奪う，主張するs

This nutrient is also said to 促進する the 生産／産物 of melanin and so give you a quicker, deeper, longer-継続している tan.

The 判決

Professor 強硬派 said: 'This is いつかs used in sunscreen and when 適用するd as a sun cream can 妨げる sunburn. But there is no 証拠 that it 影響する／感情s your tan in any way.'

Himanthalla elongata

The （人命などを）奪う，主張するs

This algae is said to 促進する the 生産／産物 of melanin. The theory is that because this algae is 設立する on sea shores it 含む／封じ込めるs a natural enzyme to 保護する it from the sun, which the 団体／死体 can also use to help 上げる the 生産／産物 of melanin. 製造者s （人命などを）奪う，主張する this 許すs you to tan more quickly and so 限界 your time in the sun - therefore doing your 団体／死体 いっそう少なく 損失. Again, this 製品 is often 目的（とする）d at people with 極度の慎重さを要する 肌 as 製造業者s （人命などを）奪う，主張する it 許すs 使用者s to spend いっそう少なく time in the sun.

The 判決

非，不，無 of our 専門家s had ever heard of this 製品. But Professor 強硬派 said: 'I'd be 極端に surprised if this did 許す you to tan better. It would be ありそうもない because most 実体s that you eat are digested before they could get into the system and make a difference.'

Tablet s which （人命などを）奪う，主張する to 保護する your 肌 from the sun

Beta carotene

The （人命などを）奪う，主張するs

This active 成分 is a natural pigment which gives many fruit and vegetables - such as carrots and pumpkins - their colour. When we eat foods 含む／封じ込めるing beta carotene the 団体／死体 変えるs it into ビタミン A (Retinol). Retinol - now 広範囲にわたって marketed in anti-wrinkle creams - 刺激するs 肌 独房 growth and builds collagen, which is 必須の to help 持続する the 肌's elasticity.

German 研究 has 示すd that using sun cream 加える an oral 補足（する） of beta carotene or mixed carotenoids may help 増加する sun 保護 compared with just using sun 審査する. Some people believe carotenoids, 含むing beta carotene, may 保護する 肌 by 反映するing 紫外 light before it has a chance to 侵入する deeper 層s of the 肌. Because it is a natural pigment, in high doses beta carotene may also 追加する a yellow or orange colour to the 肌.

The 判決

All our 専門家s agreed that beta carotene can turn the 肌 a yellowy/orange colour in high enough doses. But they were 高度に 懐疑的な about its ability to 保護する the 肌 from the sun. They also 警告するd that 妊娠している women should not take beta carotene as too much ビタミン A can 害（を与える） an unborn baby.

Dr Staughtons said: 'Beta carotene has been tried by the 医療の profession for many years as a way of 保護するing the 肌 from the harmful 影響s of the sun, but it has been a 広大な／多数の／重要な 失望.' Professor 強硬派 said: 'There have been many 熟考する／考慮するs into beta carotene over the years. Some 熟考する／考慮するs have 示唆するd that it can 保護する against sun 損失 and some have 示唆するd it doesn't. In my opinion it would make a 極小の difference.'

Professor James Ferguson, 長，率いる of the photo-biology 部隊 at Ninewells Hospital in Dundee agreed. 'T he 証拠 is that it has very little photo-保護の 質s,' he said. 'Beta carotene is a yellow staining pigment and if you eat enough of it will discolour your 肌. But people should be careful about taking too much as it can turn you orange.'

Selenium

The （人命などを）奪う，主張するs

This is an antioxidant nutrient 現在の in fish such as salmon, mackerel and マグロ, nuts - 特に Brazil nuts - and seeds. Antioxidants are thought to 'mop up' 解放する／自由な 過激なs - the 高度に reactive 分子s that can lead to premature ageing and 病気 and are created when the 肌 is exposed to the sun.

The 判決

Professor John 強硬派 said: 'Antioxidants probably only 戦闘 10 per cent of the 損失 that the sun does to the 肌. Even if selenium worked very efficiently people would only be わずかに more 保護するd.'

How the 専門家s say you should 保護する your 肌

All our 専門家s said the best way to 避ける 損失ing your 肌 too much when sunbathing is to 避ける the sun between 11am and 3pm when the sun is at its strongest. They 示唆する wearing a suncream with a 最小限 of SPF15.

Dr Staughtons 追加するd: 'Never 許す yourself to 燃やす. When you 燃やす your 肌 the 独房s that 保護する your 肌 from 損失 - and therefore 癌 - are wiped out for about two weeks. It is now thought that this time is the window of 適切な時期 that 肌 癌 needs.'